Conflict & Security in the 12th century
488 sourced entries, 1100 CE to 1199 CE, oldest first. Also see Conflict & Security across every century or everything else in the 12th century.
- 1100January – The Seljuk ruler Muhammad Tapar is expelled from Baghdad by his brother Barkiyaruq, but Muhammad manages to retake the city during his spring offensive.source
- 1100August 20 – With the support of a Venetian fleet, the Crusaders under Tancred capture the coastal city of Haifa.source
- 1100August – Battle of Melitene: Bohemond I of Antioch is captured by the Danishmends, leaving Tancred as regent of the Principality of Antioch for two years.source
- 1100September 16 – Battle of Malagon: The Almoravid army defeats Castellan troops.source
- 1100The Liao dynasty crushes the Zubu, a tribute state of the Khitan Empire, and takes their khan prisoner.source
- 1100After a success over the Armenians of Cilicia and the Emirate of Aleppo, Baldwin of Bourcq becomes Count of Edessa, with the support of Daimbert.source
- 1101July 20 – Robert Curthose lands at Portsmouth with an army in an effort to take the English throne from his younger brother, Henry I.source
- 1101September 7 – Battle of Ramla: A Crusader force (some 1,100 men) under Baldwin I defeats the invading Fatimids at Ramla (modern Israel). Baldwin plunders the Fatimid camp and the survivors flee to Ascalon.source
- 1101Crusade of 1101 – A second wave of European crusaders attempts to cross Anatolia, to reach the Kingdom of Jerusalem. They are defeated by the Seljuk troops under Sultan Kilij Arslan I, at Heraclea. A handful of crusaders under Raymond IV of Toulouse manage to reach the Byzantine port of Bafra, at the mouth of the River Halys.source
- 1101Spring – King Baldwin I concludes an alliance with the Genoese fleet, offering them commercial privileges and booty. He captures the towns of Arsuf and Caesarea. Baldwin's crusaders pillage Caesarea and massacre the majority of the local population.source
- 1101Summer – Almoravid forces under Sultan Yusuf ibn Tashfin besiege Valencia, which is defended by Jimena Díaz, widow of Rodrigo Diaz de Vivar. The city holds out until May 1102.source
- 1102May 5 – The short-lived principality created by Rodrigo Diaz de Vivar ends: Valencia is captured by Almoravid forces under Sultan Yusuf ibn Tashfin. It is later recaptured, evacuated and burned by King Alfonso VI.source
- 1102May 17 – Battle of Ramla: The Crusaders (500 knights) under King Baldwin I are defeated by the Fatimid army at Ramla (modern Israel). Baldwin and his companions escape through the enemy lines to Arsuf.source
- 1102May 27 – The Crusaders under Baldwin I break their way out of Jaffa, which is encircled by the Fatimid Army. A charge of the French cavalry breaks the enemy's ranks, and forces them to retreat to Ascalon.source
- 1102King Henry I captures Arundel Castle after having besieged Earl Robert of Bellême. Robert loses his English lands (as did his brothers Roger the Poitevin and Arnulf de Montgomery) and is banished to Normandy.source
- 1102Siege of Tripoli: The Crusaders under Raymond IV begin the siege of Tripoli (modern Lebanon). The garrison calls for assistance, but a Seljuk relief army from Damascus and Homs is defeated by Raymond.source
- 1102Spring – A Fatimid expeditionary force (some 20,000 men) invades Palestine and launches attacks into the Kingdom of Jerusalem. The Crusaders defeat a Fatimid rearguard near Ascalon, and capture the city after a 3-year siege. The Crusaders capture Caesarea Maritima with support of the Genoese fleet. A number of Genoese trading colonies are established along the Mediterranean coast.source
- 1103August 24 – King Magnus III is killed in battle with the Ulaid in Ulster. Sigurd Jorsalfare, Øystein Magnusson and Olaf Magnusson succeed him as joint kings of Norway.source
- 1103The Champa army, under king Jaya Indravarman II, raided Đại Việt's border and launched battles to retake three provinces in the Địa Lý regions.source
- 1103Summer – The Crusaders led by Bohemond I and Joscelin of Courtenay raid the territory of Aleppo to gain supplies. They capture the town of Muslimiyah, and extract a large tribute. Sultan Fakhr al-Mulk Radwan, the Seljuk ruler of Aleppo, agrees to pay 7,000 gold pieces and ten horses to the Crusaders while Bohemond agrees to release all Seljuk prisoners captured at Muslimiyah.source
- 1103Lý Giác, a wizard, launched a rebellion against king Lý Nhân Tông of the Lý dynasty. The national army led by Lý Thường Kiệt quickly quelled the rebellion. Lý Giác then escaped to Champa and later provoked the war between the two countries which lasted for nearly 2 years.source
- 1103Spring – Bohemond I, Norman prince of Antioch, is released from Seljuk imprisonment at Niksar, after a ransom is paid of 100,000 gold pieces. During his absence, Tancred (Bohemond's nephew) attacks the Byzantines, and re-captures the cities of Tarsus, Adana and Mamistra in Cilicia. Tancred is deprived of his lordship by Bohemond's return, and is rewarded with a small fief within the Principality of Antioch.source
- 1103The Crusaders under Raymond IV invade the Beqaa Valley and capture Tortosa to isolate Tripoli. Raymond expands towards the Orontes River, and begins to build a castle on the Mons Peregrinus which helps in the Siege of Tripoli (see 1102). Emperor Alexios I supports the Crusaders by sending a Byzantine fleet (ten ships) to blockade the port of Tripoli.source
- 1104May 7 – Battle of Harran: The Crusaders under Baldwin II are defeated by the Seljuk Turks. Baldwin and Joscelin of Courtenay are taken prisoner. Tancred (nephew of Bohemond I) becomes regent of Edessa. The defeat at Harran marks a key turning point of Crusader expansion.source
- 1104May 26 – King Baldwin I captures Acre, the port is besieged from April, and blockaded by the Genoese and Pisan fleet. Baldwin promises a free passage to those who want to move to Ascalon, but the Italian sailors plunder the wealthy Muslim emigrants and kill many of them.source
- 1104Spring – The Crusaders, led by Bohemond I, re-invade the territory of Aleppo, and try to capture the town of Kafar Latha. The attack fails, owing to the resistance of the local Banu tribe. Meanwhile, Joscelin of Courtenay cuts the communications between Aleppo and the Euphrates.source
- 1104Summer – The Byzantines re-occupy the Cilician cities of Tarsus, Adana and Mamistra. A naval squadron, under Admiral Cantacuzenus, pursues in Cypriot waters a Genoese raiding fleet, and sails on to Latakia, where they capture the harbour and the lower city. Bohemond I reinforces the garrison in the citadel.source
- 1104King David IV of Georgia defeats 100,000 Seljuk Turks with only 1,500 warriors (approximate date).source
- 1104Autumn – Bohemond I departs to Italy for reinforcements. He takes with him gold and silver, and precious stuff to raise an army against Emperor Alexios I Komnenos. Tancred becomes co-ruler over Antioch – and appoints his brother-in-law, Richard of Salerno, as his deputy.source
- 1104After the raid on Đại Việt in 1103, the Champa army under king Jaya Indravarman II successfully retakes three provinces in the Địa Lý regions but is quickly defeated by the national forces led by Lý Thường Kiệt, and is forced to withdraw from the country. Đại Việt under the Lý dynasty then takes control of the three Địa Lý provinces.source
- 1104Sultan Kilij Arslan I of the Sultanate of Rum starts a war with the Danishmendids.source
- 1105April 20 – Battle of Artah: The Crusaders under Tancred, Norman prince and regent of Antioch, defeat a Seljuk army (some 7,000 men) at Artah (modern-day Reyhanlı). Tancred threatens Aleppo, capital of Sultan Fakhr al-Mulk Radwan, and expands his conquest by conquering more territory east of the Orontes River with minor opposition.source
- 1105August 27 – Battle of Ramla: The Crusaders under King Baldwin I defeat a Fatimid expeditionary force (some 15,000 men) at Ramla. Baldwin pillages the enemy camp – but does not further pursue the Fatimids. The battle ends in the last large-scale attempt of the Fatimids to reconquer Palestine.source
- 1105Autumn – Kilij Arslan I, sultan of the Sultanate of Rum, leads a Seljuk expedition to take over Melitene (modern Turkey). He attempts to capture Edessa, but the Crusader fortress is too strongly defended by its garrison. Kilij Arslan then moves on to Harran, which surrenders to him.source
- 1105Summer – King Henry I invades Normandy, takes Bayeux (after a short siege) and Caen. He advances on Falaise, and starts inconclusive peace negotiations with Duke Robert II. Henry withdraws to deal with political issues at home.source
- 1106September 28 – Battle of Tinchebray: King Henry I defeats and imprisons his older brother Robert II, duke of Normandy, in Devizes Castle. Edgar Atheling (uncle of Henry's wife) and the 3-year-old William Clito, son of Robert, are also taken prisoner. Henry places his nephew William in the custody of Helias of Saint-Saens, count of Arques.source
- 1106Bolesław III, duke of Poland, begins a civil war against his half-brother Zbigniew, for control over Lesser Poland and Silesia.source
- 1106The city of Balaguer (located in Catalonia) is conquered from the Moors by Ermengol VI, count of Urgell.source
- 1107June – Kilij Arslan I, sultan of Sultanate of Rum, conquers Mosul (during the Battle of Mosul). But he is defeated and killed by Seljuk forces under Muhammad I Tapar supported by the Ortoqids and Fakhr al-Mulk Radwan.source
- 1107October 9 – Bohemond I, prince of Antioch, lands with his army (some 34,000 men) in Epirus near Avlona. He plunders the countryside and marches to Dyrrhachium (modern Albania).source
- 1107November – Siege of Dyrrhachium: Bohemond I begins the siege of the Adriatic port city of Dyrrhachium held by its doux Alexios Komnenos.source
- 1107Spring – Duke Bolesław III along with his ally King Coloman of Hungary, invades Bohemia in order to aid Duke Svatopluk in gaining the Bohemian throne. The Polish expedition is a complete success: on May 14 Svatopluk is installed as Duke of Bohemia in Prague. King Henry V demands tribute from Svatopluk as his overlord and vassal of the Holy Roman Empire.source
- 1107Emir Fadl ibn Rabi'ah is expelled by Toghtekin, ruler (atabeg) of Damascus in Syria (approximate date).source
- 1108May 29 – Battle of Uclés: Almoravid forces defeat the armies of Castile and León. The advance of the Reconquista is halted, and the Berbers re-capture the towns of Uclés, Cuenca, Huete and Ocaña. The Christians, many of nobility, are beheaded.source
- 1108September – Siege of Dyrrhachium: Italo-Norman forces under Bohemond I lift the siege due to illness and lack of supplies. Bohemond becomes a vassal of the Byzantine Empire by signing the Treaty of Devol.source
- 1108The Taira and Minamoto clans join forces to rule Japan, after defeating the warrior monks of the Enryaku-ji temple near Kyoto. The Taira replace many Fujiwara nobles in important offices – while the Minamoto gain more military experience by bringing parts of Northern Honshu under Japanese control (approximate date).source
- 1108Baldwin I marches out against Sidon, with the support of a squadron of sailor-adventurers from various Italian cities. A Fatimid fleet from Egypt defeats the Italians in a sea-battle outside the harbour.source
- 1108Spring – King Sigurd I sails from England, on the Norwegian Crusade to Palestine. He repels a Muslim fleet near the Tagus River, then attacks Sintra, Lisbon and Alcácer do Sal, and finally defeats a second Muslim fleet further south.source
- 1109August 10 – Battle of Nakło: Bolesław III leads an expedition into Pomerania. He besieges the castle of Nakło and defeats a Pomeranian relief force.source
- 1109August 24 – Siege of Głogów: German forces led by King Henry V besiege Głogów. He is forced to abandon the siege – due to attacks of Polish guerilla warriors.source
- 1109August 24 – Battle of Hundsfeld: Bolesław III defeats the imperial forces under Henry V at Hundsfeld. The Germans are ambushed by the Polish forces.source
- 1109The Almoravid army, led by Ali ibn Yusuf, fails to reconquer Toledo (lost in 1085).source
- 1110February–May – Crusaders under Baldwin I besiege Beirut. Genoese and Pisan ships blockade the harbour; Fatimid ships from Tyre and Sidon try in vain to break the blockade. The Fatimid governor flees by night through the Italian fleet to Cyprus. On May 13, Baldwin captures the city by assault and the Italians carry out a massacre among the inhabitants.source
- 1110October–December – Crusaders under Baldwin I (supported by King Sigurd I of Norway) besiege Sidon. Norwegian ships blockade the harbour, but are nearly dispersed by a powerful Fatimid flotilla from Tyre. They are saved by the arrival of a Venetian squadron under Doge Ordelafo Faliero. On December 4, the city capitulates (under notable terms) to Baldwin.source
- 1110Approximate date of composition of Jayamkondar's Kalingattuparani, a Tamil epic celebrating the victory of Kulottunga Chola I over the Kalinga king Anantavarman Chodaganga in the Chola invasion of Kalinga that takes place around this year.source
- 1110Henry V, King of Germany, invades Italy with a large army and concludes an agreement with Pope Paschal II at Sutri. Henry renounces the right of investiture (a dispute with the former Henry IV). In return, Paschal promises to crown him emperor and to restore to the Holy Roman Empire all the lands given to the German church (since the time of Charlemagne).source
- 1110Second Chola invasion of Kalinga: The Chola emperor Kulottunga I, angered that the Kalinga king Anantavarman Chodaganga has failed to pay tribute for two consecutive years, orders a punitive expedition. He sends his general Karunakara Tondaiman (with involvement of the young prince Vikrama Chola) to lead the invasion. The Chola forces march across the rivers Palar, Pennar, Krishna, Godavari, enter Kalinga territory, defeat the elephant corps sent by Anantavarman, ravage the land, and force Anantavarman to flee.source
- 1110Almoravid forces under Sultan Ali ibn Yusuf occupy Zaragoza (modern Spain), bringing all of Andalusia's Muslim states under Almoravid control.source
- 1111March 27 – Battle of the Salnitsa river: Prince Vladimir of Kievan Rus' inflicts a crushing defeat on the Cumans (Polovtsy).source
- 1111September 13–29 – Battle of Shaizar: Sultan Muhammad I Tapar appoints Mawdud ibn Altuntash, Turkic governor (atabeg) of Mosul, to lead a Seljuk expedition against the Crusaders. The composite force includes Muslim contingents from Damascus, Diyarbakır, Ahlat and some Persian troops, headed by Bursuq ibn Bursuq from Hamadan. The Crusaders (16,000 men), led by King Baldwin I of Jerusalem, are cut off from their supplies, and within two weeks (due to constant Seljuk skirmishes) forced to fall back on Afamiya in northern Syria.source
- 1111Domnall mac Taidc temporarily seizes the Kingdom of the Isles (the Hebrides and the Isle of Man) by force.source
- 1111Almoravid forces under Syr ibn Abi Bakr capture Santarém and Sintra in Portugal. The efforts of the Berbers to reconquer lost ground also lead to the sack of Coimbra. The same year the city revolts against their lord.source
- 1111Rebellion on the borders of Normandy against the rule there of Henry I of England; Robert of Bellême is a leader of the rebels.source
- 1111In the vicinity of Welshpool, Iorwerth ap Bleddyn, prince of Powys, is killed through arson by his uncle Madog ap Rhiryd, allowing Cadwgan ap Bleddyn (Iorwerth's brother) to return to rule all of Powys, but soon afterwards Madog kills Cadwgan also, allowing Owain ap Cadwgan (son of Cadwgan) to become ruler of much of the kingdom.source
- 1111The commune of Lodi Vecchio (known as Laus Pompeia) is besieged and destroyed by Milanese troops in northern Italy.source
- 1111Winter – Crusaders, led by Baldwin I, besiege Tyre, without a supporting fleet. During the siege, a Byzantine embassy arrives in the Crusader camp. The Byzantines try to persuade Baldwin to join a coalition against Tancred, Italo-Norman prince of Galilee, but he refuses.source
- 1112April 10 – The Crusaders fight their way back to Acre (modern Israel).source
- 1112Spring – Seljuk forces under Toghtekin, Turkic governor of Damascus, intervene at Tyre, and force King Baldwin I of Jerusalem to raise the siege.source
- 1112Spring – Malik Shah, Seljuk ruler of the Sultanate of Rum, begins incursions into Anatolia. He marches on Philadelphia with his army, but is halted by the Byzantines under Gabras, governor of the Theme of Chaldia.source
- 1113June 28 – Battle of Al-Sannabra: The Crusaders led by Baldwin I are defeated (due to a feigned flight) by a Seljuk army under Mawdud ibn Altuntash, the Turkic governor (atabeg) of Mosul, at the Jordan River south of the Sea of Galilee. Mawdud sends raiding columns to ravage the countryside and sacks the town of Nablus.source
- 1113Spring – Siege of Nicaea: Malik Shah, Seljuk ruler of the Sultanate of Rum, sends an expedition through Bithynia to the very walls of Nicaea. Seljuk forces raid Abydos on the Hellespont, with its rich custom-houses. Malik Shah attacks and captures Pergamum. Emperor Alexios I Komnenos sets out to meet the Seljuk invaders. He lifts the siege at Nicaea and wins a complete victory near Cotyaeum (modern Turkey).source
- 1113Queen Urraca of Castile unsuccessfully attempts to seize the city of Burgos from her ex-husband, King Alfonso the Battler.source
- 1114As part of the Norman expansion southward, Count Routrou II enters the service of King Alfonso I (the Battler) of Aragon.source
- 1114Battle of Martorell: The Almoravid governor of Zaragoza, Muhàmmad ibn al-Hajj, launches an expedition against the County of Barcelona, but is defeated in an ambush near Martorell.source
- 1115February 11 – Battle of Welfesholz: Duke Lothair of Supplinburg joins the rebellious Saxon forces, and defeats the German Imperial Army of Emperor Henry V at Welfesholz, in Saxony-Anhalt (modern Germany).source
- 1115September 14 – Battle of Sarmin: The Crusaders, under Prince Roger of Salerno, surprise and rout the Seljuk Turkish army (some 8,000 men), led by Emir Bursuq ibn Bursuq, at Sarmin (modern Syria). Bursuq barely avoids capture, and escapes with a few hundred horsemen. Roger reoccupies the fortress of Kafartab, and consolidates his territory around Antioch.source
- 1115The Mixtec ruler Eight Deer Jaguar Claw is defeated in battle and sacrificed by a coalition of city-states, led by his brother-in law Four Wind, at Tilantongo in the Mixteca Alta region (modern Mexico).source
- 1116July 15 – Ordelafo Faliero, doge of Venice, defeats Hungarian troops under King Stephen II, who have arrived to relieve Zadar; the remaining towns of Dalmatia surrender to Venice.source
- 1116Almoravid troops conquer the Balearic Islands, whose Moorish rulers have been severely weakened by Pisan and Catalan raiders.source
- 1116Autumn – Baldwin I hastens to Tyre (modern Lebanon) and begins the construction of a new fortress, known as Scandelion Castle, at the Ladder of Tyre, which completes the blockade of the town from the mainland.source
- 1116The Welsh under King Gruffydd ap Rhys of Deheubarth attack Llandovery Castle, but are defeated. Gruffydd also attacks Swansea Castle and destroys the outer walls.source
- 1116Portuguese forces under Countess Theresa take two Galician cities, Tui and Ourense. In reply, the sister of Theresa, Queen Urraca ("the Reckless"), attacks Portugal.source
- 1117The Crusaders led by King Baldwin I of Jerusalem raid Pelusium in Egypt and burn the city to the ground. Baldwin marches back to Palestine and strengthens the fortifications of the southern frontier.source
- 1117King Mahaabarana Adeettiya (Koimala) from the Theemuge Dynasty becomes the first king to rule over the whole Maldives. He reclaims the northern atolls from the Indian invaders.source
- 1117Conflict between the de facto independent Muslim republics of Gabès and Mahdia (modern Tunisia) in Ifriqiya. Madhia is supported by the Zirid Dynasty while Gabes receives the aid of Roger II, count of Sicily.source
- 1117The sōhei or warrior monks of Mii-dera and Enryaku-ji unite their forces to attack Nara in Japan.source
- 1117Battle of Ghazni: Seljuk forces under Ahmad Sanjar (supporting the claim of Bahram-Shah) invade Afghanistan and defeat the ruling Sultan Arslan-Shah. Bahram succeeds his brother as ruler of the Ghaznavid Empire.source
- 1118June 11 – Roger of Salerno, Prince of Antioch, captures Azaz from the Seljuk Turks.source
- 1118A rebellion against Henry I of England breaks out in Normandy.source
- 1118Battle of Kennagal: The Hoysala Empire defeats the Chalukyasource
- 1118Bahram Shah becomes Ghaznavid Emperor.source
- 1118George I of Duklja is overthrown by his cousin Grubeša.source
- 1118The Almoravids lose their control of the Ebro valley:source
- 1118Đorđe Vojislavljević ruler of Serbia, is overthrown by Uroš I of Raška.source
- 1118The Zenghe era of Emperor Huizong of Song China ends, and the Chonghe era begins.source
- 1118Baldwin of Le Bourg succeeds his cousin Baldwin I, as King of Jerusalem.source
- 1118The Yongning era of Emperor Chongzong of Western Xia ends.source
- 1118Montlhéry Castle is dismantled by Louis VI of France.source
- 1118The economic competition between Milan and Como drives the two cities to war.source
- 1118Suleyman I ibn al-Ghazi becomes emir of Aleppo.source
- 1118The Byzantine general Philocales captures Sardis, from the Seljuk Sultanate of Rûm.source
- 1119August 14 – Battle of Hab: The Crusaders under King Baldwin II of Jerusalem (supported by forces of Pons, Count of Tripoli) defeat Ilghazi's army at Ariha in Syria. Baldwin manages to re-capture all of the Crusader castles and returns to Antioch in triumph. He stabilizes the frontiers and prevents Ilghazi from marching on Antioch.source
- 1119August 20 – Battle of Brémule: King Henry I of England defeats King Louis VI ("the Fat") of France and his 400 knights in Normandy. A skirmish that begins with the French launching a fierce but disordered attack, and ends with the French turning tail. Louis agrees to make peace and formally recognizes William Adelin as duke of Normandy.source
- 1120June 17 – Reconquista: Battle of Cutanda: The combined forces of Aragon and Navarre under King Alfonso the Battler crush the Almoravid army near Calamocha. Alfonso recaptures the fortified towns of Calatayud and Daroca.source
- 1120Fang La, a Chinese rebel leader, leads an uprising against the Song dynasty in Qixian Village (modern-day Zhejiang) in southeast China. He raises an army and captures Hangzhou.source
- 1120Siege of Sozopolis: Byzantine forces under Emperor John II Komnenos conquer Sozopolis in Pisidia, from the Sultanate of Rum. The Seljuk garrison is defeated while they are trapped between the Byzantine cavalry and the army (which is besieging the fortress).source
- 1121August 12 – Battle of Didgori: King David IV ("the Builder") of Georgia with a Georgian army of 55,600 men) defeats the 300,000-strong Seljuk coalition forces at Mount Didgori.source
- 1121Emperor Emperor Huizong of Song sends an expedition to crush the rebellion at Hangzhou (modern-day Zhejiang) in China. The rebels are defeated and their leader Fang La is captured and executed.source
- 1121The much larger Seljuk army is heavily defeated; Georgia is unified and independence is achieved from Muslim authority. King David IV lays siege and captures Tbilisi later in the year assigning it as his capital.source
- 1121Emperor John II Komnenos recovers southwestern Anatolia (modern Turkey) from the Seljuk Turks and then hastens to the Balkans, where the Pechenegs are continuing their incursions. He transfers Byzantine troops to the Danube frontier at Paristrion.source
- 1121Summer – Seljuk forces under Toghtekin make extensive raids into Galilee. King Baldwin II of Jerusalem, in reprisal, crosses the Jordan River with a Crusader army and ravages the countryside. He occupies and destroys a fortress that Toghtekin has built at Jerash.source
- 1121Summer – Sultan Mahmud II of the Seljuk Empire declares a Holy War on the Kingdom of Georgia. He sends an expedition under Ilghazi, the Artukid ruler of Mardin, to invade the country.source
- 1121A large rebellion takes place in Córdoba (modern Spain) against the ruling Almoravid dynasty.source
- 1122September 13 – Count Joscelin I and Waleran of Le Puiset are taken prisoner by Turkish forces led by Belek Ghazi near Saruj in northern Syria. Belek offers Joscelin liberty in return for the cession of Edessa. He refuses to accept these terms; Joscelin and Waleran and 60 other Crusaders are taken to the castle at Kharput.source
- 1122Siege of Tbilisi: The Georgians led by King David IV ('the Builder') re-conquer the city of Tbilisi from the Emirate of Tbilisi after a 1-year siege. David makes it his capital and unifies the Georgian State.source
- 1122The Almoravid fleet attacks Sicily to suppress the Italo-Norman raiders. The same year the Muslim population of Malta rebels against the Normans.source
- 1122Battle of Beroia: Emperor John II Komnenos transfers the Byzantine field army from Asia Minor (where it has been engaged against the Seljuk Turks) to the Balkans. The Pechenegs who have set up their camp (defended by a circular formation of wagons) near Beroia (modern Bulgaria) are defeated. John orders the Varangian Guard (some 480 men), the elite Palace Guard to hack their way through the Pecheneg circle of wagons, causing a general rout in their camp. Pecheneg survivors are taken captive and enlisted into the Byzantine army.source
- 1123April 18 – King Baldwin II of Jerusalem is captured by Turkish forces under Belek Ghazi – while preparing to practice falconry near Gargar on the Euphrates. Most of the Crusader army is massacred, and Baldwin is taken to the castle at Kharput. To save the situation the Venetians are asked to help. Doge Domenico Michiel lifts the siege of Corfu (see 1122) and takes his fleet to Acre, arriving at the port in the end of May.source
- 1123May 30 – The Venetian fleet arrives at Ascalon and instantly sets about attacking the Fatimid fleet. The Egyptians fall into a trap, caught between two Venetian squadrons, and are destroyed or captured. While sailing back to Acre, the Venetians capture a merchant-fleet of ten richly laden vessels.source
- 1123May – Baldwin II and Joscelin I are rescued by 50 Armenian soldiers (disguised as monks and merchants) at Kharput. They kill the guards, and infiltrate the castle where the prisoners are kept. Joscelin escapes to seek help. However, the castle is soon besieged by Turkish forces under Belek Ghazi – and is after some time recaptured. Baldwin and Waleran of Le Puiset are moved for greater safety to the castle of Harran.source
- 1123June – King David IV of Georgia, nicknamed "Davit IV Aghmashenebeli" ("David the Builder") by his subjects, defeats Sultan Mahmud II of the Seljuk Empire (encompassing much of what is now Iraq and Iran).source
- 1123August 9 – Battle of Al-Dimas: An Italo-Norman campaign in North Africa ends with their troops being massacred by Zirid forces near Mahdia (modern Tunisia).source
- 1125November – Jin–Song War: Emperor Taizong of the Jurchen-led Jin dynasty declares war on the Chinese Song dynasty – and orders his armies to invade Song territory. He sends the Western army to the city of Taiyuan in Shanxi province and the Eastern army to Bianjing (modern-day Kaifeng), the Song capital. The Song forces are not expecting an invasion and are caught off guard.source
- 1126January 31 – Jurchen forces lay siege to Kaifeng. Qin Zong negotiates the terms of surrender, agreeing an annual indemnity. He orders Song forces to defend the prefectures of the Northern Song.source
- 1126February 18 – Battle of Chlumec: Duke Soběslav I defeats a German army under King Lothair III and his Moravian ally, Duke Otto II the Black. Soběslav becomes the head of the Bohemian Principality.source
- 1126Spring – The Crusaders under Pons, count of Tripoli, attack the fortress of Rafaniya (once held by Pons' grandfather Raymond IV), which dominates the entry of the Buqaia from the Orontes Valley. They besiege the fortress for 18 days and capture it on March 31.source
- 1126Jin–Song War: Jurchen forces reach the Yellow River Valley, two days after New Year. Remnants of the court flee south, including much of the populace, and communities such as the Kaifeng Jews.source
- 1126Autumn – Bohemond II takes over his inheritance of the Principality of Antioch. He sails from Otranto with a Norman fleet of 24 ships, carrying a number of troops and horses. Bohemond lands at the port of St. Symeon early in October and is welcomed at Antioch.source
- 1126Spring – In China, scholars and farmers demonstrate around the capital city of Kaifeng, for the restoration of a trusted military official, Li Gang (李綱). Small conflicts erupt between the protestors and the government.source
- 1126Summer – King Alfonso the Battler of Aragon and Navarre launches a campaign raid into Granada in Andalusia (modern Spain) against the Almoravids. In the aftermath, the Almoravid deport Jews and Christians from Andalusia to Morocco.source
- 1127January 9 – Jin–Song Wars: Jurchen forces sack the Chinese capital of Kaifeng of the Northern Song dynasty during the Jingkang incident. They capture Emperor Qinzong, along with his father, Huizong, and members of the House of Zhao.source
- 1127December 18 – Conrad III (with support of the imperial cities, Swabia and Austria) is elected and crowned as anti-king of Germany at Nuremberg.source
- 1127Imad ad-Din Zengi, a Turkish military leader, becomes governor (atabeg) of Mosul. He seizes the cities of Nisibin, Sinjar and Harran in the Jazira Region (Northern Mesopotamia).source
- 1127Spring – The forces of Alfonso VII of León and Castile begin the Siege of Guimarães, which will end in their withdrawal.source
- 1127Summer – King Roger II of Sicily claims the Hauteville possessions in Italy as well the overlordship of Capua. However, a coalition of Norman noblemen in Apulia and Calabria resist (supported by Pope Honorius II) against Sicilian rule. The same year, Roger regains control over Malta after a rebellion. Roger II also establishes a pact with the maritime Republic of Savona to guarantee the security of the Mediterranean Sea, probably following an Almoravid raid against the Sicilian realm.source
- 1128June 21 – Battle of Axspoele in Flanders: William, with his Norman knights and French allies, defeats Thierry, who is forced to flee to Bruges and then to Aalst where he is besieged.source
- 1128June 24 – Battle of São Mamede: Count Alfonso I (Henriques) defeats the forces led by his mother, Queen Theresa of Portugal, near Guimarães, and gains control of the county. Alfonso styles himself "Prince of Portugal".source
- 1128Jin–Song Wars: Emperor Gaozong of the Song dynasty establishes a new capital at Yangzhou, while the government retreats south, after Jurchen forces capture the previous capital of Kaifeng in the Jingkang Incident.source
- 1128Forces of the kingdom of Champa invade Đại Việt.source
- 1128Byzantine–Hungarian War: Emperor John II Komnenos defeats the Hungarians and their Serbian allies at the fortress of Haram (or Chramon), which is modern-day Nova Palanka.source
- 1129March 26 – Gao Zong abdicates the throne after a mutiny of the palace guard. His 2-year-old son Zhao Fu succeeds him, but Empress Meng becomes regent and the sole ruler.source
- 1129September – Roger II of Sicily gains recognition as duke at Melfi from the Norman nobles of Naples, Bari, Capua, Salerno and other cities that have resisted him.source
- 1129Jin–Song War: Emperor Gao Zong of the Song dynasty moves the capital from Yangzhou to Hangzhou, after the Jurchen Jin dynasty captures Kaifeng in the Jingkang Incident.source
- 1130January 22 – Jin–Song Wars: Jin forces take Hangzhou.source
- 1130February 4 – Jin–Song Wars: Jin forces take Shaoxing.source
- 1130March 26 – Magnus IV and his uncle Harald Gille become joint kings of Norway, starting the civil war era in Norway.source
- 1130April 24 – Jin–Song Wars: Battle of Huangtiandang – Naval forces of the Song dynasty trap Wuzhu's Jin troops in the city for 48 days.source
- 1130Approximate date – Magnus the Strong is deposed as king of Götaland, when Sverker the Elder proclaims himself king of Sweden.source
- 1132July 24 – Battle of Nocera: Rebel Normans under Count Ranulf II defeat the Sicilian forces, led by King Roger II. Seven hundred knights are captured, and Roger is forced to retreat to Salerno.source
- 1132The Southern Song court establishes the first permanent standing navy, with the headquarters of the Chinese admiralty based at Dinghai.source
- 1133July 17 – Battle of Fraga: The Castellan troops led by King Alfonso I (the Battler) defeat the Almoravid army, thanks to a timely intervention of a Norman Crusader army from Tarragona, led by Robert Bordet.source
- 1133Ramon Berenguer IV, count of Barcelona, launches a raid against Almoravid-held territories in Al-Andalus (modern Spain), and pillages the country all the way to Cádiz.source
- 1134Battle of Färlev: Magnus IV of Norway defeats Harald IV Gille of Norway.source
- 1134Viacheslav of Kiev becomes Prince of Turov.source
- 1134Aed mac Domnaill becomes King of Ui Failghe.source
- 1134Battle of Fraga: Castillan forces are defeated by Muslim troops. King Alfonso I (the Battler) is killed and succeeded by his brother Ramiro II as ruler of Aragon. In Navarre the nobility elects Garcia VI as Alfonso's successor.source
- 1134Eric II becomes King of Denmark.source
- 1134Battle of Fotevik: Harald Kesja and Magnus the Strong are defeated by the forces of Erik Emune.source
- 1134Roger II of Sicily defeats a revolt in Naples.source
- 1134Iziaslav II of Kiev becomes Prince of Vladimir and Volyn.source
- 1134Yelü Dashi captures Balasagun from the Kara-Khanid Khanate, marking the start of the Qara Khitai empire (and its Kangguo era) in Central Asia.source
- 1134Narbonne is seized by Alphonse I of Toulouse.source
- 1134Vsevolod Mstislavich of Novgorod defeats the Chuds and captures Tartu.source
- 1135Spring – Shams al-Mulk Isma'il, Seljuk ruler of Damascus, sends envoys to Imad al-Din Zengi, Seljuk ruler of Mosul, to seek his protection in exchange of Damascus. Zengi crosses the Euphrates, receiving the surrender of the city of Hama. He besieges Damascus but, due to a shortage of supplies, is forced to abandon the siege. Zengi extricates himself from Damascus, his Seljuk forces capture the fortresses at Ma'arrat and Atharib.source
- 1135Summer – King Roger II lands with a Sicilian expeditionary force in Salerno. He splits his army, and conquers the cities of Aversa and Alife. Roger besieges Naples – but despite poor health conditions within the city, he is not able to take it, and returns again to Messina.source
- 1135Pisans in the service of the Holy See (Diocese of Rome) sack the city of Amalfi.source
- 1135Jin–Song War – Song forces under Yue Fei begin a counteroffensive against the Jurchen-ruled Jin dynasty in northern China. He defeats Jin forces, by entangling his paddle-wheel ships at the Huai River.source
- 1135The Hammadid Emirate (modern Algeria) launches an assault against the city of Mahdia (modern Tunisia).source
- 1136August 14 – The siege of Bagdhad by the Seljuks ends after Abbasid caliph al-Rashid Billah flees to Mosul. Seljuk sultan Ghiyath ad-Din Mas'ud enters the city the following day.source
- 1136October – Battle of Crug Mawr (Great Barrow): King Owain Gwynedd (styled "Prince of Wales") defeats the Norman and Flemish forces under Robert Fitz Martin, securing the control of Ceredigion (West Wales).source
- 1136Summer – Emperor Lothair III invades southern Italy in response to the appeal of Emperor John II Komnenos (see 1135) and conquers Apulia from King Roger II of Sicily. Duke Grimoald of Bari, supported by Lothair III, rebels against Roger.source
- 1136The city of Béjaïa (modern Algeria) repels a Genoan naval assault.source
- 1136Spring – King David I of Scotland invades northern England and captures many of the major towns including Carlisle and Newcastle. In response, King Stephen raises an army (with Flemish mercenaries), and marches to Durham. David agrees to negotiate a peace between the two countries.source
- 1137March 25 – Bazwāj, a mamluk (slave) commander of Damascus, launches a military campaign against Tripoli, reaching Pilgrims' Mount. He defeats a Crusader army under Count Pons (protector of Tripoli). Pons is forced to flee into the mountains where native Christians capture him. Later, he is handed over and instantly put to death by Bazwāj.source
- 1137August 29 – John II appears before the walls of Antioch, and encamps with the Byzantine army on the north bank of the Orontes River. For several days he besieges the city, Raymond of Poitiers (prince of Antioch) is forced to surrender. He recognizes John as his suzerain and becomes with Joscelin II (count of Edessa) a vassal of the Byzantine Empire.source
- 1137October 30 – Battle of Rignano: Sergius VII, duke (magister militum) of Naples, is defeated by the Sicilian forces under King Roger II of Sicily. Sergius is killed and Roger establishes direct control over Naples – nominating his 17-year-old son Alfonso of Capua as the new duke.source
- 1137Spring – Emperor John II (Komnenos) leads a Byzantine expeditionary force into Cilicia (the Byzantine fleet guards his flank). He defeats the Armenians under Prince Leo I ("Lord of the Mountains"), and captures the cities of Mersin, Tarsus, Adana and Mamistra. Leo retreats to the great fortifications of Anazarbus – where its garrison resists for 37 days. The Byzantine siege engines batter down its walls, and the city is forced to surrender. Leo escapes into the Taurus Mountains, while the Byzantine forces march southward into the plain of Antioch.source
- 1137Summer – Battle of Ba'rin: A Crusader force led by King Fulk of Jerusalem is scattered and defeated by Imad al-Din Zengi, Seljuk governor (atabeg) of Mosul. Fulk with a small bodyguard escapes into Montferrand Castle, which is surrounded and besieged by Zengi. After negotiations, Fulk is granted his freedom in exchange for the castle.source
- 1137An Almoravid fleet of 37 ships attack the coasts of southern Italy, under Norman rule.source
- 1137Spring – King Stephen sails to Normandy to confront Geoffrey V (the Fair) and the Angevins, who are attacking the southern areas of Normandy. Although Stephen has some success, he is not able to recapture Normandy from Matilda, daughter and heiress of the late King Henry I.source
- 1138April 20 – Byzantine Emperor John II Komnenos, having led an expeditionary force into Syria, arrives before the walls of Aleppo. The city proves too strong to attack, but the fortresses of Biza'a, Athareb, Ma'arrat Nu'man and Kafartab are taken by assault. While the Byzantines besiege the city of Shaizar, the Crusader allies Prince Raymond of Poitiers of Antioch and Count Joscelin II of Edessa remain in their camp playing dice.source
- 1138April 28 – Siege of Shaizar begins. The Byzantines under John II besiege the capital of the Munqidhite Emirate. They capture the lower city on May 20, but fail to take the citadel. John negotiates with Emir Abu'l Asakir Sultan who sends him an offer to pay a large indemnity and become a vassal of the Byzantine Empire. John, disgusted by his Crusader allies, accepts the terms and raises the siege on May 21.source
- 1138May – Earl Robert FitzRoy rebels against King Stephen, supporting Matilda (his step-sister) in her claim for the English throne. Matilda is given refuge by Earl William de Albini at Arundel Castle. Stephen builds siege works around the castle, but is unable to break the castle's defences. In France, Matilda's husband Duke Geoffrey V (the Fair) takes advantage of the situation by re-invading Normandy.source
- 1138August 22 – Battle of the Standard: King David I of Scotland gives his full support to Matilda (daughter of the late King Henry I), and invades the north of England – travelling as far south as Lincolnshire. The Scottish army (some 15,000 men) is defeated by English forces under Earl William le Gros in Yorkshire. David retreats to Carlisle and reassembles an army.source
- 1138Summer – A civil war breaks out in the Holy Roman Empire, a struggle begins between the Guelphs and Ghibellines, while the family name Welf of Henry X will be corrupted into Guelph.source
- 1139July 8 or August 21 – Jin–Song Wars: Battle of Yancheng – Song dynasty general Yue Fei defeats an army led by Jin dynasty general Wuzhu.source
- 1139July 25 – Battle of Ourique: The independence of Portugal from the Kingdom of León is declared after the Almoravids, led by Ali ibn Yusuf, are defeated by Prince Afonso Henriques. He then becomes Afonso I, King of Portugal, after calling the first assembly of the Estates-General of Portugal at Lamego, where he is given the Crown from the Bishop of Bragança, to confirm the independence.source
- 1140August 21 – Jin–Song Wars – Battle of Yancheng: Chinese forces under the command of Yue Fei defeat a numerically superior Jin army led by Wuzhu.source
- 1140December 21 – Siege of Weinsberg: Conrad III captures the castle at Weinsberg during the civil war between the Staufers and the Welfs in Germany.source
- 1140Spring – King Fulk of Jerusalem confronts Imad al-Din Zengi, Seljuk ruler (atabeg) of Mosul, near Dara'a in southern Syria. Turkish forces under Mu'in al-Din (supported by the Crusaders) besiege Banias.source
- 1141February 2 – The Anarchy in the Kingdom of England – Battle of Lincoln: Robert, 1st Earl of Gloucester and Empress Matilda wrest control of the throne of England from King Stephen, who is captured and imprisoned.source
- 1141September 9 – Battle of Qatwan: Yelü Dashi, founder of the Qara Khitai, defeats the Seljuk Empire and Kara-Khanid forces.source
- 1141November 1 – The Anarchy in the Kingdom of England – Robert, 1st Earl of Gloucester is exchanged by Empress Matilda for King Stephen, who reassumes the throne of England.source
- 1142January 28 – Despite having saved the southern Song Dynasty from attempts by the northern Jin Dynasty to conquer it, Chinese general Yue Fei is executed by the Song government.source
- 1142December – Stephen lays siege to Oxford Castle, trapping Matilda and her supporters inside the city. Just before Christmas she manages to escape across the snow and ice of the frozen Thames River – dressed in white (to get past Stephen's pickets), and safely reaches Abingdon. The next day Oxford Castle surrenders to Stephen, Matilda rides with an escort to Wallingford Castle, where she seeks refuge.source
- 1142Duke Władysław II the Exile attempts to subject his younger (half)-brothers to re-unite Poland. He is supported by the alliances with the Kievan Rus' and the Holy Roman Empire.source
- 1142Raymond II, count of Tripoli, grants property in the county (such as the massive castle Krak des Chevaliers) to the Knights Hospitaller. After acquiring the site, they begin building new fortifications.source
- 1142King Louis VII the Younger of France becomes involved in a civil war with Theobald II ("the Great"), count of Champagne, by permitting his cousin Ralph I of Vermandois (seneschal of France) to repudiate his wife, Theobald's sister Eleanor of Champagne, and to marry Petronilla of Aquitaine, who was the sister of King Louis VII’s wife, Queen Eleanor of Aquitaine.source
- 1142Siege of Lisbon (1142): King Afonso I of Portugal attempts to besiege Lisbon with the aid of a group of Anglo-Norman crusaders.source
- 1142Autumn – Imad al-Din Zengi, Seljuk governor (atabeg) of Mosul, continues his campaign against the Kurds in southeastern Anatolia (since 1141). Byzantine forces under John II fail to take Antioch.source
- 1142Sigurd II, a Norwegian pretender, is joined in his efforts to overthrow the 7-year-old King Inge Haraldsson of Norway by Inge's older half-brother Eystein II, who becomes co-ruler. He receives one third of the late Harald's kingdom.source
- 1142A Norman raid against the city of Tripoli fails.source
- 1143July 1 – Battle of Wilton: Earl Robert of Gloucester (illegitimate son of the late King Henry I) defeats the English forces of King Stephen during a surprise attack at Wilton Abbey. In the darkness, Stephen escapes, while his steward William Martel fights a rearguard action to delay the pursuers.source
- 1143Norman raiders capture Jijel (modern Algeria). A Norman raid on Ceuta fails, but at the same time the Normans lead a successful assault against Sfax.source
- 1144December 24 – Siege of Edessa: Seljuk forces led by Imad al-Din Zengi conquer the fortress city of Edessa after a four-week siege. Thousands of inhabitants are massacred – only the Muslims are spared. The women and children are sold into slavery. This eliminates the Crusader principality of Outremer. Lacking the forces to take on Zengi, Joscelin II retires to his fortress at Turbessel. There, he requests reinforcements from the Byzantines and Queen-Regent Melisende of Jerusalem. This will lead to the Pope preaching a Second Crusade.source
- 1144Autumn – Imad al-Din Zengi, Seljuk governor (atabeg) of Mosul, attacks the Artuqid forces led by Kara Arslan – who has made an alliance with Joscelin II, count of Edessa. In support of the alliance Joscelin marches out of Edessa with a Crusader army down to the Euphrates River, to cut off Zengi's communications with Aleppo. Zengi is informed by Muslim observers at Harran of Joscelin's movements. He sends a detachment of Muslims to ambush the Crusaders and reaches Edessa with his main army in late November.source
- 1144Spring – Italo-Norman forces under King Roger II of Sicily invade the Papal States to force Pope Lucius II to accept his truce, but the patrician Giordano Pierleoni, brother of the late Antipope Anacletus II, leads the Roman populace to proclaim a constitutional republic free of papal authority with regard to civil rule. Pierleoni takes over the papal capital, and establishes the Commune of Rome in the style of the old Roman Republic.source
- 1144Summer – Geoffrey Plantagenet, Count of Anjou ("the Fair", husband of Empress Matilda) completes his conquest of Normandy, which comes under Angevin control. In exchange for being recognised as Duke of Normandy by King Louis VII of France, Geoffrey surrenders half of the county of Vexin – a region vital to Norman security – to Louis.source
- 114414-year old Baldwin III of Jerusalem quells a rebellion in Wadi Musa.source
- 1145Estimation: Merv (in the Seljuk Empire) becomes the largest city in the world, surpassing Constantinople.source
- 1145Spring – Seljuk forces led by Imad al-Din Zengi capture Saruj, the second great Crusader fortress east of the Euphrates. They advance to Birejik and besiege the city, but the garrison puts up a stiff resistance. Meanwhile, Queen-Regent Melisende of Jerusalem joins forces with Joscelin II, count of Edessa and approaches the city. Zengi raises the siege after hearing rumours of trouble in Mosul. He rushes back with his army to take control. There, Zengi is praised throughout Islam as "defender of the faith" and al-Malik al-Mansur, the "victorious king".source
- 1145The Merinids of Maghrib al-Aqsa attempt to resist the Almohads but are forced into the desert areas around the Tafilalt. Oran falls to the Almohads. A Norman raid against the Tripolitania region succeeds.source
- 1145Raymond of Poitiers, prince of Antioch, travels to Constantinople to ask Emperor Manuel I Komnenos for help to support his campaign against the Seljuks. When he arrives, Raymond is forced to accept the suzerainty of the Byzantine Empire. Manuel treats him graciously, gives him gifts and promises him a money subsidy.source
- 1146March 1 – Eugene III reissues the bull Quantum praedecessores, originally issued in December 1145), proclaiming the Second Crusade.source
- 1146Summer – King Roger II launches a full scale invasion into North Africa, seizing lands from Emir Abu'l-Hasan al-Hasan ibn Ali in what is now parts of Algeria, Tunisia and Libya – thereby opening up more of the mercantile wealth of the Muslim world to Sicilian merchants. On June 18, George of Antioch conquers Tripoli and establishes more Sicilian authority.source
- 1146The Republic of Genoa raids the Muslim-held Balearic Islands. The Republic of Pisa protests officially – seeing the islands as rightfully theirs. The Genoese then proceed to lay siege to Almería, in vain.source
- 1146Autumn – Siege of Edessa: The Crusaders under Joscelin II recapture Edessa (Northern Syria) from Nur ad-Din, Seljuk ruler of Damascus. After not receiving support from the other Crusader states, Nur ad-Din counter-raids the territory of Antioch but withdraws his forces to retake Edessa in November.source
- 1147May–June – Nur al-Din, Seljuk ruler (atabeg) of Aleppo, signs a peace treaty with Mu'in al-Din Unur. As part of the agreement, he marries Mu'in al-Din's daughter Ismat al-Din Khatun. Together Mu'in al-Din and Nur al-Din besiege the fortresses of Bosra and Salkhad, which has been captured by rebellious Muslim forces.source
- 1147July 1–October 25 – Siege of Lisbon: King Afonso I of Portugal conquers Lisbon from the Taifa of Badajoz after a four-month siege, with support of English, Flemish and German Crusaders. The garrison surrenders on the guarantee that their lives will be spared. The Crusaders break the terms and take part in a bloody massacre. Afonso rules from his capital at Coimbra, takes Sintra and Santarém, and sacks Palmela.source
- 1147July 17 – King Alfonso VII of León and Castile, leads a campaign at the head of mixed armies of Catalonia, Genoa, Pisa and France. He besieges Almería in southern Al-Andalus (modern Spain); a Genoese fleet of 63 galleys and 163 other vessels, blockade the Almoravid-held port, which is captured after a 2-month siege on October 17.source
- 1147October 25 – Battle of Dorylaeum: The German crusaders under Conrad III are defeated by the Seljuk Turks led by Sultan Mesud I. Conrad is forced to turn back and is wounded by arrows during the retreat to Nicaea. In Seljuk territory the Crusaders are harassed all the way and demoralised by the intensified attacks. Many of the weakest people fall behind and are captured by the Muslims.source
- 1147November – The combined forces of Louis VII and Conrad III meet at Lopardium and march along the coastal road via Pergamon and Smyrna to Ephesus, where they celebrate Christmas. Conrad, still suffering from his wounds, sails back to Constantinople to be placed under the care of Manuel's own physicians. Meanwhile, the Crusader camp is attacked by Turkish raiders near Ephesus.source
- 1147December 24 – Battle of Ephesus: The French crusaders under Louis VII leave Ephesus, and ascend the Meander Valley. Louis is warned by messengers of Manuel that Seljuk and Danishmendid forces are assembling west of Adalia. Louis ignores the advice and successfully fends off an ambush just outside Ephesus.source
- 1147A Sicilian fleet (some 70 ships) under George of Antioch attacks Corfu, the island surrenders and welcomes the Normans as their liberators. Leaving a garrison of 1,000 men, George sails to the Peloponnesus. He pillages the cities of Corinth, Athens and Thebes. King Roger II begins an 11-year war between Sicily and the Byzantine Empire.source
- 1147Spring – Eugene III leaves Viterbo and travels to France. At the start of April he meets Louis VII at Dijon. It is agreed that Abbot Suger, Louis' adviser, governs France while Louis is away.source
- 1147Battle of Bosra: A Crusader force under King Baldwin III fights an inconclusive battle against Seljuk forces from Damascus led by Mu'in al-Din aided by Nur al-Din's contingents from Aleppo and Mosul. Baldwin retreats to Jerusalem, while the Seljuk Turks attack his rearguard and stragglers underway back to Palestine.source
- 1147Spring – The Almohads under Abd al-Mu'min destroy the Almoravid Empire. They capture Marrakesh and kill the last emir, Ishaq ibn Ali. Abd al-Mu'min orders the elimination of 30,000 Almoravids in a purge.source
- 1148January 1 – The French crusaders under King Louis VII defeat a Turkish ambush next to the Meander River. Three days later they arrive at Laodicea – passing the spot where the German contingent led by Otto of Freising had been so disastrously ambushed (see 1147). The Crusaders are badly mauled as they cross Mount Cadmus (around January 8) before reaching Adalia on January 20.source
- 1148January 8 – Battle of Mount Cadmus: The French crusaders under Louis VII are defeated by the Seljuk Turks. The vanguard led by Geoffrey de Rancon ignores orders to pause and moves too far ahead, losing touch with the main army. The French are attacked by the Turks with the baggage train (almost 10 km long) unprotected. Louis is able to escape the fray under cover of the darkness.source
- 1148March – The French crusaders are left in Adalia; lack of available shipping obliges Louis VII to divide his forces – the knights and best troops accompany him to St. Symeon. Large numbers of pilgrims and non-combatants try to continue along the coastal road. Continually harassed by the Turks many French and Germans are killed. Less than half of them arrive in the late spring at Antioch.source
- 1148June – Mu'in ad-Din Unur, Seljuk ruler (atabeg) of Damascus, prepares for war and strengthens the fortifications of the city. He sends an urgent request for military assistance to the Zangid ruler Sayf al-Din. Unur orders his troops to destroy the water sources in areas that the Crusaders must cross. Seljuk governors of frontier provinces station scouting parties along the road to Damascus.source
- 1148July 24 – Zangid forces under Sayf al-Din arrive at Homs. Mu'in al-Din Unur sends a letter of ultimatum to the Crusader leaders to lift the siege of Damascus. Meanwhile, guerrilla attacks demoralise the Crusaders.source
- 1148July 28 – Siege of Damascus: The Crusaders are forced to withdraw from their siege of Damascus after only four days. First Conrad III, then the rest of the Crusader army, decides to retreat to Jerusalem.source
- 1148July – The Crusaders under Baldwin III join forces with the Crusader armies of Louis VII and Conrad III (all together some 50,000 men) at Tiberias. They march up the Jordan Valley and cross into Zangid territory.source
- 1148September – The French crusaders raid the province of Damascus, in reprisal for the failure of their siege. Mu'in al-Din Unur takes his forces to the Hawran to protect the harvest and its transport to Damascus.source
- 1148October – Queen Matilda returns to Normandy, partially due to her difficulties with the Catholic Church. Without the support of Robert of Gloucester her personal fight for the English throne is over.source
- 1148Battle of Ghazni: Ghurid forces under Sayf al-Din Suri defeat the Ghaznavid sultan Bahram-Shah and capture the capital Ghazni. Bahram-Shah is forced to flee to India.source
- 1148Siege of Tortosa: A multinational force under Ramon Berenguer IV besieges the Almoravid city of Tortosa. After a 7-month siege the garrison surrenders.source
- 1148Following the uprising of other cities in the region of Meknes (modern Morocco) under al-Massati, the population of Ceuta rebels against the Almohads.source
- 1149April – King Louis VII and Queen Eleanor of Aquitaine sail homeward in separate Sicilian ships. While the fleet rounds the Peloponnese (southern Greece) it is attacked by ships of the Byzantine navy. Louis gives orders to raise the French flag and is allowed to sail on. But the ships containing many of his followers and his possessions are captured and taken as a war-prize to Constantinople.source
- 1149June 29 – Battle of Inab: The Zangid army under Nur al-Din defeats the combined army of Raymond of Poitiers and the Assassins of Ali ibn Wafa at Inab. After the battle, Nur al-Din invades Antiochene territory and captures the fortresses of Artah and Harim. He then turns west to appear before the walls of Antioch itself and raids as far as St. Symeon.source
- 1149July – King Baldwin III receives an urgent request for help from Antioch to break the incomplete Zangid blockade of the city. Meanwhile, the Crusaders fail to retake Harim. Nur al-Din strengthens his siege of Antioch, but it is too large to surround. A truce is agreed under which Harim and farther east territory remains under Seljuk dominance.source
- 1149October 24 – Ramon Berenguer IV, count of Barcelona, conquers Lleida from the Almoravids, after a siege of seven months (as well as Fraga and Mequinenza).source
- 1149Åhus, in present-day Sweden, gains city rights (approximate date).source
- 1149Spring – King Stephen besieges Worcester, but is unable to capture the castle due to its strong defences. He expels William de Beauchamp, lord of the city. Stephen builds two forts near the castle to assist in the attack.source
- 1150February 8 – Battle of Flochberg: German forces under Henry VI defeat the army of the House of Welf at Bopfingen. At the same time, King Conrad III besieges Welf forces at Braunschweig in Saxony, but he lifts the siege when confronted by Henry the Lion.source
- 1150Battle of Aintab: A Crusader army led by King Baldwin III repels the attacks of Nur al-Din near Aintab. Baldwin safely evacuates the Christian residents of the County of Edessa, which is captured by the Zangids.source
- 1150Battle of Tara: The Byzantines defeat the Serbian-Hungarian army under Grdeša, count (župan) of Travunija, near the snow-covered Tara River. The Serbs are overpowered, and Grand Prince Uroš II is forced to accept the peace agreement made by Emperor Manuel I Komnenos. Uroš is succeeded by his brother Desa, who becomes co-ruler of the Principality of Serbia (until 1153).source
- 1150Spring – Joscelin II, count of Edessa, on his way to Antioch is separated from his escort and falls into the hands of some Turcoman free-booters. Nur al-Din, ruler (atabeg) of Aleppo, heard of Joscelin's capture and sends a squadron of cavalry to take him from his captors. Joscelin is led before a hostile crowd and publicly blinded. Nur al-Din puts him in prison in the Citadel of Aleppo.source
- 1151After the Battle of Ghazni, the city is burned by the Prince of Ghur.source
- 1152Spring – King Baldwin III and his mother, Queen Melisende, are called to intervene in a dispute between Baldwin's aunt Hodierna and her husband Raymond II, count of Tripoli. Hodierna decides to take a long holiday, and travels to Jerusalem, while Raymond escorts her out on the road southwards. On the way back to Tripoli, a group of Assassins stabs him to death at the southern gate of the city. The garrison rushes to arms and pours into the streets, slaying every Muslim in their way, but the Assassins manage to escape; the motive of their act is never known.source
- 1152Stephen besieges Newbury Castle and holds the young William as a hostage to ensure that his father, John Marshal, keeps his promise to surrender the castle. When John refuses to comply, Stephen threatened to have the young boy catapulted over the walls. After this, William remains a crown hostage for many months.source
- 1152The Almohad Caliphate conquers the Maghrib al-Awsat (modern Algeria). The city of Béjaïa becomes one of the main naval bases of the Almohads.source
- 1152Summer – Nur al-Din, Seljuk ruler (atabeg) of Aleppo, re-captures most of Crusader territory in the Orontes Valley – reducing the Principality of Antioch to little more than a narrow coastal strip along the Mediterranean. The County of Tripoli remains unchanged and Jerusalem remains a potential threat with ambitions to expand eastward, while also striving to dominate the Fatimid Caliphate in Egypt.source
- 1152Baldwin III begins a civil war against Melisende and launches an invasion in the south. He captures the castle of Mirabel, which is defended by Manasses. Baldwin spares his life and is exiled, Nablus thereupon surrenders soon after. Melisende seeks refuge in the Tower of David with her younger son, the 16-year-old Amalric. Baldwin enters Jerusalem, he allows his mother to retain Nablus and the neighbourhood as her dower.source
- 1153August 19 – Siege of Ascalon: King Baldwin III of Jerusalem captures Ascalon, the last Fatimid fortress in Palestine. The citizens are allowed to leave in peace and return to Egypt.source
- 1153August – Stephen assemble troops to renew the siege of Wallingford Castle in a final attempt to take the stronghold. Henry of Anjou marches south to relieve the siege, arriving with a small army of mercenaries. He places Stephen's besieging troops under siege themselves. Stephen agrees to make a truce and accepts Henry as heir to the English throne.source
- 1153Estimation: Constantinople, capital of the Byzantine Empire, becomes the largest city of the world, taking the lead from Merv in the Seljuk Empire.source
- 1153Spring – The 19-year-old Henry II of England lands with a Norman fleet (some 40 ships) on the south coast of England. He defeats King Stephen (a cousin of his mother, Queen Matilda) with a small army at Malmesbury. Henry travels north through the Midlands, while a temporary truce is accepted. Robert de Beaumont, 2nd Earl of Leicester, announces his support for the cause. Hoping to dethrone Stephen and replace him with Matilda.source
- 1154April 18 – Nur al-Din, Seljuk ruler (atabeg) of Aleppo, encamps before Damascus and overthrows Mujir al-Din by force with support of the Jewish citizens, who open the eastern gate to the bulk of his army. Mujir flees to the citadel, but capitulates after only a few hours. He is offered his life and the Emirate of Homs. A few weeks later Mujir is suspected of plotting with old friends in Damascus and is exiled to Baghdad. Damascus is annexed to Zangid territory and all of Syria is unified under the authority of Nur al-Din, from Edessa in the north to the Hauran to the south.source
- 1154The Almohad army conquers the last independent Muslim stronghold at Granada (modern Spain), after a six year siege.source
- 1155April 18 – Siege of Tortona: German forces capture the citadel of Tortona (after a two-month siege). The city is razed to the ground, including the graves.source
- 1155The city of Bari rebels against King William I ("the Bad") of Sicily and recognizes the Byzantine emperor Manuel I Komnenos as its overlord.source
- 1155Henry II subdues the English nobles who have become too powerful during the civil war. He takes Bridgnorth Castle and Scarborough Castle.source
- 1156May 28 – King William I (the Bad) lands with a Sicilian expeditionary force in Apulia. He defeats the Byzantine army at Brindisi and recaptures Bari.source
- 1156July 28 – The Hōgen rebellion, a dispute between Emperor Go-Shirakawa and his half-brother retired-Emperor Sutoku, erupts in Japan.source
- 1156The independent city-state Sfax revolts against Norman occupation. Almohad forces conquer the city and massacre the Christian citizens.source
- 1157July – Henry II launches a campaign against Owain Gwynedd in north Wales. Although Owain defeats him at the Battle of Ewloe he eventually submits to Henry and pays homage.source
- 1157August 21 – Sancho III and Ferdinand II, the sons of King Alfonso VII of Castile, divide his kingdom between them upon his death.source
- 1157Nur al-Din Zengi besieges the Knights Hospitaller in the crusader fortress of Banyas, routs a relief army led by King Baldwin III of Jerusalem, and takes Grand Master Bertrand de Blanquefort prisoner.source
- 1158January 11 – Vladislav II becomes king of Bohemia. He is crowned by Frederick Barbarossa, Holy Roman Emperor, with a diadem (called by the chroniclers a diadema or circulus). Vladislaus is also invested with Upper Lusatia, and accompanies Frederick to Milan to suppress the rebellion in Lombardy (northern Italy).source
- 1158Autumn – Emperor Manuel I Komnenos sets out from Constantinople at the head of an expeditionary army. He marches to Cilicia; and while the main army follows the coast road eastwards Manuel hurries ahead with a force of only 500 cavalry. He manages to surprise Thoros II "the Great", lord of the Armenian Kingdom of Cilicia, who participated in the attack on Cyprus in 1156. Thoros flees into the mountains and Cilicia is occupied by the Byzantines.source
- 1158Portuguese forces, led by King Afonso I of Portugal ("the Great"), conquer Pamela, Alcácer do Sal and Sesimbra from the diminished Almoravids.source
- 1159Taira no Kiyomori leaves Kyōto on a personal pilgrimage, giving Fujiwara no Nobuyori and his Minamoto allies the perfect chance to stage an uprising.source
- 1160January 25 – Frederick Barbarossa, Holy Roman Emperor, captures Crema, Lombardy after a 6-month siege, as part of his campaign against the independent Italian city-states. Some 20,000 survivors are allowed to leave the city with whatever they could carry before Crema is looted and burnt to the ground. The expense of the siege (over 2,000 silver marks) and Frederick's determination to enforce it over the winter, demonstrates his ability to hold troops in the field and to keep his allies on side.source
- 1160A large Portuguese offensive begins in the Alentejo region, against the Almoravids. The city of Tomar is founded by Gualdim Pais, Grand Master of the Knights Templar.source
- 1160Autumn – Raynald of Châtillon, prince of Antioch, makes a plundering raid in the valley of the Euphrates at Marash to seize cattle, horses and camels from the local peasants. On his way back to Antioch, he and his retinue are attacked by Zangid warriors. Raynald is unhorsed, captured and sent to Aleppo where he is put in jail.source
- 1160In Japan, the Heiji Rebellion began with the siege of the Sanjō Palace.source
- 1161February 3 – Battle of Oslo: King Inge I of Norway ("the Hunchback") is defeated and killed while fighting the forces of Haakon II ("the Broadshouldered") who succeeds Inge, with 5-year-old Magnus V as co-ruler, but not without challenges to his sovereignty.source
- 1161December 15 – Wanyan Liang, Chinese prince of Hailing, is assassinated while on campaign. He is succeeded by Emperor Shizong of Jin (until 1189).source
- 1161An Almoravid offensive against the Kingdom of Portugal reaches the city of Almada, located on the Tagus river.source
- 1161Jin–Song Wars: The Battle of Tangdao (November 16) and Battle of Caishi (November 26–27) on the Yangtze River, between the Jin dynasty and the Song dynasty in China result in two pivotal Song naval victories.source
- 1162March 6 – German forces led by Frederick Barbarossa, Holy Roman Emperor, capture Milan; much of the city is destroyed three weeks later on the emperor's orders. The fortifications are demolished and the churches are destroyed. The population is dispersed, and the commune abolished. The fate of Milan leads to the submission of Brescia, Piacenza, and many other northern Italian cities.source
- 1162July 7 – Norwegian forces supporting 6-year-old Magnus V (Erlingsson) defeat the 15-year-old King Haakon II (Sigurdsson), who is killed in battle in Romsdal after a 5-year reign.source
- 1164August 12 – Battle of Harim: Zangid forces under Nur al-Din defeat and capture Bohemond III of Antioch, Raymond of Tripoli, and Hugh of Lusignan.source
- 1164Spring – Saladin accompanies his uncle, General Shirkuh, with an army sent to the Fatimid Caliphate (modern Egypt) by Nur al-Din, ruler (atabeg) of Syria.source
- 1164Battle of Renfrew: A Norse-Gaelic army led by Lord Somerled, ruler of the Isles, invades Scotland and is routed by the Scottish forces under the command of Walter fitz Alan and Herbert of Selkirk, bishop of Glasgow.source
- 1165October 15 – Battle of Fahs al-Jullab: Almohad forces defeat Ibn Mardanish, ruler of the Taifa of Murcia. His army is routed at a place called the "merchant field" near Alhama, in the valley of the Guadalentín.source
- 1165c. August – Battle of Crogen: Owain Gwynedd (Owain Fawr), ruler of the Kingdom of Gwynedd in north Wales, having formed an alliance with his nephew Rhys ap Gruffydd, prince of Deheubarth, to challenge English rule, defeats King Henry II of England and drives his army out of Wales.source
- 1165Reconquista – Gerald the Fearless, Portuguese warrior and adventurer, seizes the city of Évora by surprise. The same year (or soon after), he takes Cáceres, Trujillo, Montánchez, Moura, Monsaraz and Alconchel from the Almohads.source
- 1166Summer – Henry II of England invades and conquers Brittany to punish the local Breton barons. He grants the territory to his 7-year-old son Geoffrey.source
- 1166Byzantine Emperor Manuel I Komnenos asks Venice to help pay the costs of defending Sicily, whose Norman rulers have had good relations with Venice. Doge Vitale II Michiel refuses to pay the requested subsidy. Manuel begins to cultivate relationships with the main commercial rivals of Venice: Genoa and Pisa. He grants them their own trade quarters in Constantinople, very near the Venetian settlements.source
- 1166Mieszko III the Old proclaims a Prussian crusade against the pagans and pressures the collaboration of Frederick I. He leaves Greater Poland in the hands of his younger brother Casimir II the Just.source
- 1167March 18 – Battle of Al-Babein: A second Zangid army (some 12,000 men) under General Shirkuh and his nephew Saladin marches towards Egypt, but is met by the combined Crusader-Fatimid forces led by King Amalric of Jerusalem. After skirmishing down the Nile, the Crusaders are defeated near Giza and forced to retreat to Cairo.source
- 1167April 7 – Oath of Pontida: Supported by Pope Alexander III, the Lombard League is founded, a military alliance between the municipalities of Milan, Lodi, Ferrara, Piacenza and Parma, against the German invading forces of Emperor Frederick I (Barbarossa) in Northern Italy. The League (with other Italian cities) openly challenges Frederick's claim to power (Honor Imperii).source
- 1167May 29 – Battle of Monte Porzio: The army of the Commune of Rome is defeated by German forces under Frederick I and the local princes; Alexander III leaves Rome. Frederick proceeds to Rome, where he is crowned by Antipope Paschal III for the second time. A sudden outbreak of pestilence kills many of his advisors and knights.source
- 1167May–June – Saladin leads the defence of Alexandria against the Crusader-Fatimid forces. He takes command over the garrison (plus some 1,000 cavalry), and the army's sick and wounded.source
- 1167July 8 – Battle of Sirmium: Byzantine forces (15,000 men) under General Andronikos Kontostephanos defeat the Hungarians at Sirmium. Emperor Manuel I (Komnenos) consolidates his control over the western Balkans.source
- 1167August 4 – Amalric I accepts a peace treaty and enters Alexandria at the head of the Crusader army. Saladin and his troops are escorted out with full military honours, and retreats to Syria.source
- 1167Probable date – Battle of Pantina: The Byzantines intervene on behalf of Grand Prince Tihomir of Serbia against his rebellious brother, Prince Stefan Nemanja, who defeats the Byzantine forces and becomes Grand Župan of Serbia.source
- 1168October 20 – Amalric I invades Egypt again from Ascalon, sacking Bilbeis and threatening Cairo. In November, a Crusader fleet sails up the Nile and arrives in Lake Manzala, sacking the town of Tanis.source
- 1168The newly born Commune of Rome conquers and destroys the rival neighboring city of Albano (modern Italy).source
- 1169May – Anglo-Norman invasion of Ireland: Anglo-Norman mercenaries land at the request of deposed King Diarmaid mac Murchadha (Dermot). Among those arriving is Richard de Clare (a vassal of Henry II), who has made an alliance with exiled Diarmaid mac Murchadha to help him regain the throne of Leinster. This begins the period of Anglo-Norman dominance of Ireland.source
- 1169August 21–23 – At the Battle of the Blacks, Saladin crushes a rebellion by Sudanese forces (50,000 men) of the Fatimid army, along with a number of Egyptian emirs and commoners. He never again has to face a military uprising from Cairo.source
- 1169During the Swedish power struggle, Boleslaw is killed, but his brother Kol continues as ruler of Östergötland (until 1173), in opposition to King Knut Eriksson of Sweden.source
- 1169Summer – Saladin invites his brother Turan-Shah to join him in Cairo. He brings his family and retinue with him but also a substantial army provided by Nur al-Din. Turan-Shah is welcomed by Al-Adid as a friend.source
- 1169Andrey Bogolyubsky, Grand Prince of Vladimir-Suzdal, sacks Kiev (with help from allies) and makes Vladimir the capital of Kievan Rus'. He installs relatives on the throne at Kiev.source
- 1169Spring – A Zangid expedition under General Shirkuh accompanied by his nephew Saladin invades Egypt. King Amalric I of Jerusalem orders his fleet to return to Acre and retreats with the Crusaders back to Palestine.source
- 1169Winter – Saladin supported by reinforcements from Nur al-din, defeats a Crusader-Byzantine force under Amalric I near Damietta. During the 3-month siege, the Crusaders are forced to retreat to Palestine.source
- 1169Late Summer – Emperor Manuel I Komnenos sends an embassy to Egypt to demand tribute, and threatens the country with war when they refuse to pay it. The Byzantine fleet under Admiral Andronikos Kontostephanos sets out from the Hellespont; 60 war galleys are sent to Palestine with money for "the knights of Jerusalem". Andronikos with the rest of the fleet sails to Cyprus, at which he defeats a patrolling squadron of 6 Fatimid ships.source
- 1170September 21 – Anglo-Norman invasion of Ireland: Following a siege, combined Anglo-Norman and Irish forces seize the city of Dublin, forcing Ascall mac Ragnaill, last King of Dublin, into exile.source
- 1170December 29 – Thomas Becket is assassinated by four knights (who believe themselves to be carrying out Henry II's wishes) in Canterbury Cathedral, after his refusal to be arrested for breaking his agreement with Henry II.source
- 1170Fes in the Almohad Caliphate (modern Morocco) becomes the largest city of the world, taking the lead from Constantinople, capital of the Byzantine Empire.source
- 1170Winter – Egyptian forces, led by Saladin, invade the Kingdom of Jerusalem, and besiege Darum on the Mediterranean coast. Its defenses are weak, and though Saladin has no siege engines with him, the fall seems imminent. King Amalric I withdraws his Templar garrison from Gaza, to assist him in defending Darum. Saladin raises the siege and marches on Gaza, where he captures the lower town (despite the stiff resistance ordered by Lord Miles of Plancy), and massacres the inhabitants. However, the citadel is too strong for Saladin, and he is forced to retreat to Egypt.source
- 1170The palace guards massacre the civil officials at the Korean court of Goryeo and place Myeongjong as new ruler on the throne of the Goryeo dynasty.source
- 1171March 12 – Emperor Manuel I (Komnenos) orders the arrest of all Venetians in his empire, and seizes their ships and goods.source
- 1171September 25 – Saladin leads an Egyptian army to take part in a joint attack on the Crusader castles Kerak and Montréal, south of the Dead Sea. In November, Saladin withdraws his forces to Cairo to suppress a coup.source
- 1171October 17 – Henry II invades Ireland and lands with a large army of at least 500 mounted knights, and 4,000 men and archers at Waterford. Henry commandeers merchant ships as part of his invasion. He claims the ports of Dublin, Waterford, and Wexford, and promises the Irish chieftains protection if they will acknowledge him as their overlord. Henry is recognized as "Lord of Ireland", traders are invited to Dublin where an English colony is set up.source
- 1171Ascall mac Ragnaill (or Torcaill), last Norse–Gaelic king of Dublin, is captured while trying to retake Dublin from the English forces under Richard de Clare, perhaps in company with Sweyn Asleifsson, and is beheaded. Before the end of the year, Richard relinquishes possession of the city to Henry II, who converts it into an English royal town.source
- 1172Winter – The Nubians are engaged in a series of skirmishes along the frontier in Upper Egypt. A force of Kurdish troops under Turan-Shah, a brother of Saladin, attack the Nubians. He installs a garrison in Qasr Ibrim.source
- 1172Summer – Emir Nur al-Din begins a two year war against the Danishmendids. He creates a buffer zone between the Syrian realm and Egypt. Meanwhile, he releases Count Raymond of Tripoli for the sum of 80,000 dinars.source
- 1172A Muslim rebellion is quelled at Prades in Catalonia; this event marks the end of the pacification of the lands recently conquered by Count Ramon Berenguer IV ("the Saint").source
- 1173March – Henry the Young King withdraws to the French court, marking the beginning of the Revolt of 1173–1174, a dispute between King Henry II, his estranged wife Eleanor of Aquitaine and three of their sons over the territories they control. Eleanor is placed under de facto house arrest. William the Lion, King of Scotland, invades the North of England in support of the rebellion.source
- 117317 October – Revolt of 1173–74: Battle of Fornham – Flemish mercenaries under rebel leader Robert de Beaumont, Earl of Leicester, are defeated at a ford in East Anglia by the English royalists under Lord Richard de Lucy.source
- 1173Pro-Fatimid rising in Upper Egypt led by Kanz al-Dawla, governor of Aswan, is crushed by Saladin's brother Al-Adil.source
- 1173Sinhalese king Parakramabahu I "the Great" gains a decisive victory by invading the Chola Empire as an ally of the Pandyas, capturing Tondi and Pasi regions.source
- 1174March 31 – A conspiracy against Saladin, aiming to restore the Fatimid Caliphate, is revealed in Cairo, involving senior figures of the former Fatimid regime and the poet Umara al-Yamani. Modern historians doubt the extent and danger of the conspiracy reported in official sources, but its ringleaders will be publicly executed over the following weeks.source
- 1174July 13 – Battle of Alnwick: King William I (the Lion), supported by Flemish mercenaries, invades England, to help fight in the baronial rebellion against King Henry II. William attacks Prudhoe Castle in Northumberland, but is unable to capture it. He is captured by Lord Ranulf de Glanvill, and brought back to Newcastle. Henry occupies a part of Scotland, with its five strongest castles: Roxburgh, Berwick, Jedburgh, Edinburgh and Stirling.source
- 1174July 25 – The Sicilian fleet (some 250 ships) under Tancred, Count of Syracuse, launches a failed attack against Alexandria. But he is deprived of support and forced to sail away after a seven-day blockade on August 1.source
- 1174September 30 – The Revolt of 1173–1174: After a year and a half of rebellion, Henry II achieves peace agreements with his sons Henry the Young King, Richard, Geoffrey, and John at Montlouis, on the basis of the pre-war status quo. Before he returns to Normandy, Henry orders the rebel castles in England and Aquitaine to be destroyed.source
- 1174October 29 – Emperor Frederick I (Barbarossa), on his fifth Italian campaign, begins the siege of Alessandria in northern Italy. He is opposed by the Lombard League (now joined by Venice, Sicily and Constantinople).source
- 1174October – Battle of Thurles: Gaelic-Irish forces under King Domnall Mór Ua Briain defeat an Anglo-Norman invasion at Thurles in Ireland. The English expedition led by Earl Richard de Clare (Strongbow) is surprised while encamped in the area of Lognafola and is forced to retreat to Waterford.source
- 1174November 23 – Saladin arrives at Damascus and spends the night at his father's old house, until the gates of the Citadel of Damascus are opened to him, after a brief siege by his brother Tughtakin ibn Ayyub.source
- 1174Summer – French forces under King Louis VII, supported by Henry the Young King and Philip of Alsace, encircle Rouen. The city holds out against the war engines long enough for Henry II to arrive in the middle of August to stage a rescue. The besiegers are fearful that Henry will invade France and the siege is lifted.source
- 1174Kilij Arslan II, Seljuk ruler of the Sultanate of Rum, rounds off his conquest of the Danishmend Turks in Eastern Anatolia. He allies with the Zangid rulers against Mosul.source
- 1175May 22 – A group of Isma'ili Assassins gains access into Saladin's camp and attempts to kill him during the siege of Aleppo. But his bodyguard saves his life, the others are slain while trying to escape.source
- 1175Vordingborg Castle is completed by King Valdemar I of Denmark as a defensive fortress.source
- 1175Winter – The Massacre of Abergavenny ends with several Welsh noblemen dead, at the orders of Lord William de Braose.source
- 1175Under the admirals of the clan Banu Mardanish, an Almohad fleet suffers a large defeat at the hand of the Portuguese, as they are trying to re-conquer Lisbon.source
- 1176May 29 – Battle of Legnano: The Imperial army (some 5,500 men) led by Emperor Frederick I (Barbarossa) is defeated by forces of the Lombard League, leading to the pactum Anagnium (the Agreement of Anagni).source
- 1176September 17 – Battle of Myriokephalon: The Seljuk Turks defeat the Byzantine forces led by Manuel I, who are ambushed when moving through a narrow mountain pass near Lake Beyşehir. The Byzantines are dispersed and surrounded. They suffer heavy casualties and their siege equipment is destroyed. Manuel flees in panic and is forced to sign a peace treaty with Kilij Arslan II.source
- 1176Al-Adil I, Ayyubid governor of Egypt, suppresses a revolt by the Christian Copts in the city of Qift, hanging nearly 3,000 of them on the trees near the city.source
- 1176Spring – Saladin defeats the Zangid forces before Damascus and marries Nur al-Din's widow Asimat. On June 24 he accepts a truce and is recognized as the sovereign over Syria.source
- 1176Summer – Saladin ends his siege of the Ismaili ("Assassins") fortress of Masyaf, which is commanded by Rashid al-Din Sinan.source
- 1177November 25 – Battle of Montgisard: Baldwin IV of Jerusalem and Raynald of Chatillon defeat Saladin.source
- 1177A civil war breaks out in the Republic of Florence, between the Uberti Family and their consular opponent.source
- 1177The Cham sack the Khmer capital of Angkor. The date is disputed.source
- 1177During the winter, the Estonians attack Pskov.source
- 1177Casimir II overthrows his brother Mieszko III the Old, to become High Duke of Poland.source
- 1178August 17 – A battle occurs as a Latin force raids the vicinity of Hama, Syria.source
- 1178Portuguese forces under King Afonso I (the Conqueror) capture the city of Beja from the Almohads.source
- 1179June 10 – Battle of Marj Ayyun: A Crusader army (some 10,000 men) led by Baldwin IV is defeated by Muslim forces under Saladin near the Litani River (modern Lebanon). The Knights Templar join the battle, but they are driven back in confusion. Baldwin narrowly escapes being captured in the route. Amongst Saladin's prisoners are Odo de St. Amand, Grand Master of the Templars, and Lord Baldwin of Ibelin.source
- 1179June 18 – Battle of Kalvskinnet: Norwegian forces led by King Sverre Sigurdsson defeat and kill Earl Erling Skakke, outside Nidaros in Norway. The battle changes the tide of the civil wars.source
- 1179August 30 – Siege of Jacob's Ford: Muslim forces led by Saladin conquer and destroy the unfinished Castle of Chastellet at Jacob's Ford, killing 80 knights and taking 700 civilians captive.source
- 1179September 17 – A large offensive, by the Almohad army led by Yusuf I in southern Portugal, aims at the reconquest of the Alentejo. Further north, an Almohad fleet sails to attack Lisbon, but is repelled by the Portuguese, near the Cape Espichel. The Portuguese fleet later manages to enter in the harbour of Ceuta, and destroy a number of Muslim ships. It is the beginning of a four-year naval conflict between the Almohads and Portuguese.source
- 1179Taira no Kiyomori, Japanese military leader, confines the former Emperor Go-Shirakawa to his quarters after discovering that he has tried to confiscate the estates of Kiyomori's deceased children.source
- 1180June 20 – Battle of Uji: Prince Mochihito and Minamoto no Yorimasa take refuge in the Byōdō-in Temple. They appeal to warrior monks for assistance, but are ultimately defeated by Taira forces. Yorimasa commits suicide, and Mochihito is killed while fleeing.source
- 1180September 14 – Battle of Ishibashiyama: A Taira force of approximately 3,000 men, led by Ōba Kagechika, defeats Minamoto no Yoritomo near Mount Fuji (in present-day Odawara). Yoritomo narrowly escapes by sea and flees to Awa Province.source
- 1180November 9 – Battle of Fujigawa: Minamoto forces, numbering around 30,000 and commanded by Minamoto no Yoritomo, defeat a Taira army under Taira no Koremori near the Fuji River. The Taira forces retreat in disorder, though Koremori manages to escape.source
- 1180Saladin intervenes in a conflict between the Zengids of Mosul and the Artuqids. He persuades the Seljuk sultanate of Rum not to become involved and proceeds to raid Cilician Armenia.source
- 1180Hangzhou, the capital of the Southern Song dynasty in China, becomes the largest city in the world, surpassing Fez in the Almohad Caliphate.source
- 1180Genpei War: Prince Mochihito launches a rebellion against the ruling Taira clan. In support of the uprising, Minamoto no Yorimasa issues a call to arms, appealing to several Buddhist monasteries—such as Enryaku-ji, Mii-dera, and others—that have been alienated by Kiyomori.source
- 1180Portuguese admiral Dom Fuas Roupinho defeats the Almohad fleet for the second time in two years.source
- 1181King Béla III of Hungary and Croatia goes to war with Venice in an effort to recover Dalmatia. The city of Zadar (located on the Adriatic Sea) accepts Béla's suzerainty.source
- 1181After a series of defeats, the Almohad fleet under the admiral Ahmad al-Siqilli, crushes the Portuguese navy and reasserts its control over the Atlantic Ocean.source
- 1181Summer – Raynald of Châtillon, lord of Oultrejordain, raids Saladin's territory, reaching as far as Tabuk (modern Saudi Arabia) on the route between Damascus and Mecca. In November, Saladin sends an expedition under his nephew, Farrukh Shah, who invades Oultrejordain. Raynald of Châtillon is forced to withdraw home. Saladin complains to King Baldwin IV of Jerusalem (the Leper) for breaking the treaty (see 1180) and demands compensation.source
- 1181Philip II begins a war against Philip of Alsace, count of Flanders, over the Vermandois. He claims the territory for his wife Isabella of Hainault as her dowry. Philip is unwilling to give it up.source
- 1181Henry the Lion, duke of Saxony, submits to Emperor Frederick I (Barbarossa) at an Imperial Diet in Erfurt. He is banished to England and retains only Brunswick among his former lands.source
- 1182April – Massacre of the Latins: The Eastern Orthodox inhabitants of Constantinople massacre the Venetian, Genoan, and other Latin officials and traders who rule as agents of Empress Maria of Antioch. She is the mother and regent of 12-year-old Emperor Alexios II.source
- 1182May 11 – Saladin leads an Egyptian expeditionary force from Cairo to Syria. In June, he arrives in Damascus and learns that his nephew Farrukh Shah has raided Galilee, and sacked the villages near Mount Tabor. On his way back, Farrukh Shah attacks the fortress of Habis Jaldak, carved out of the rock above the River Yarmuk. The garrison, Christian Syrians with no great wish to die for the Crusaders, promptly surrenders.source
- 1182May – June – Béla III, king of Hungary, ravages the region of Belgrade and Barancs (modern-day Braničevo). Meanwhile, Serbia allies itself with Hungary to gain independence.source
- 1182July – August – Battle of Belvoir Castle: Saladin crosses into Palestine round the south of the Sea of Galilee. King Baldwin IV (the Leper) of Jerusalem marches with his army back from Oultrejordain and attacks Saladin's forces near Belvoir Castle (modern Israel). In a fierce battle, the Crusaders successfully repel Saladin's invasion. At the end of the day, each side retires, claiming the victory.source
- 1182August – Saladin sends an Egyptian fleet to blockade Beirut and leads his forces in the Bekaa Valley. The city is strongly fortified and Baldwin IV rushes with his army up from Galilee – only pausing to collect the ships that lay in the harbors of Acre and Tyre. Failing to take Beirut by assault before the Crusaders arrived, Saladin breaks off the siege and withdraws.source
- 1182September – Saladin invades the Jazira Region, ending the truce between him and the Zangids. After a feint attack on Aleppo, he crosses the Euphrates. The towns of the Jazira fall before him; the cities of Edessa, Saruj and Nisibin are captured in October. Saladin presses on to Mosul, and begins the siege of the city on November 10.source
- 1182December – Baldwin IV raids through the Hauran and reaches Bosra, while Raymond III of Tripoli recaptures Habis Jaldak. A few days later, Baldwin sets out with a Crusader force to Damascus and encamps at Dareiya in the suburbs. He decides not to attack the city and retires laden with booty, to spend Christmas at Tyre.source
- 1183August 14 – Taira no Munemori and the Taira clan take the young Emperor Antoku and the three sacred treasures, and flee to western Japan to escape pursuit by the Minamoto clan (traditional Japanese date: Twenty-fifth Day of the Seventh Month of the Second Year of Juei).source
- 1183November 17 – Battle of Mizushima: The Taira Clan defeats the Minamoto Clan.source
- 1183November – Andronikos makes a treaty with Venice, in which he promises a yearly indemnity as compensation for Venetian losses, during the Massacre of the Latins.source
- 1183Alexios II is compelled to condemn his own mother to death. In September, Andronikos Komenos is formally proclaimed Byzantine Emperor before the crowd on the terrace of the Church of Christ of the Chalke. By the end of the month, Andronikos orders Alexios' assassination; the young emperor is strangled in secret with a bow-string and his body thrown in the Bósporos.source
- 1183The Siege of Kerak is waged between the Ayyubids and the Crusaders, in which regent Guy of Lusignan refuses to fight.source
- 1184February 19 – Second Battle of Uji: Japanese forces under Minamoto no Yoshinaka are defeated by his cousins, Minamoto no Yoshitsune and Minamoto no Yoritomo, for the control of Japan.source
- 1184February 21 – Battle of Awazu: Minamoto no Yoshinaka is killed during a pursuit by his cousin's armies. He is joined by his foster brother Imai Kanehira, who commits suicide.source
- 1184March 20 – Battle of Ichi-no-Tani: Japanese forces under Minamoto no Noriyori defeat the Taira clan at Ikuta Shrine in the woods of Settsu Province during the Genpei War.source
- 1184May – Berber forces under Ali Banu Ghaniya seize the Almohad cities of Algiers, Béjaïa and Constantine by surprise. While he is away from his base in Mallorca, one of his brothers, Muhammad, takes control of the island and calls in the Almohads, who intend to capture Mallorca for themselves. Banu Ghaniya arrives just in time to defeat the Almohads and recapture the island.source
- 1184June 15 – Battle of Fimreite: King Sverre of Norway defeats and kills his rival, Magnus V (Erlingsson) near Fimreite. Sverre takes the throne and becomes sole ruler of Norway (until 1202).source
- 1184July 26 – Approximately 60 are killed in the Erfurt latrine disaster.source
- 1185March 22 – Battle of Yashima: Japanese forces (with some 140 ships, 1,000 cavalry and 30,000 horses) under Minamoto no Yoshitsune defeat the Taira clan just off Shikoku in the Seto Inland Sea.source
- 1185April 25 – Battle of Dan-no-Ura: The Japanese fleet (some 300 ships) led by Minamoto no Yoshitsune defeats the fleet of the Taira clan in the Shimonoseki Strait.source
- 1185August – King William II of Sicily ("the Good") lands in Epirus with a Siculo-Norman expeditionary force of 200 ships and 80,000 men (including 5,000 knights) and marches as far as the Byzantine city of Thessaloniki, which he takes and pillages, massacring some 7,000 Greek citizens.source
- 1185November 7 – Battle of Demetritzes: A reinforced Byzantine army under Alexios Branas decisively defeats William II, ending his invasion of the Byzantine Empire. Thessaloniki is recaptured, and the Normans are pushed back to Italy. Many Norman ships are lost to storms.source
- 1185Uprising of Asen and Peter: Peter and Ivan Asen lead a revolt of the Vlachs and Bulgars against the Byzantine Empire, eventually establishing the Second Bulgarian Empire.source
- 1185Igor Svyatoslavich's failed campaign against the Cumans, later immortalized in The Tale of Igor's Campaign, takes place this year.source
- 1187March 13 – Saladin leaves Damascus with his Muslim forces, and sends letters to neighboring countries, asking for volunteers for a forthcoming jihad ("Holy War"). A week later his younger brother Al-Adil, governor of Egypt, leads his forces out of Cairo towards Syria. Meanwhile, Saladin leaves an army under his 18-year-old son Al-Afdal at Busra, to keep watch on the 'Pilgrim road'.source
- 1187April 29 – A delegation under Balian of Ibelin is sent to Tiberias, to reconcile with Raymond III, prince of Galilee. After Easter, a second delegation (supported by the Knights Templar and Knights Hospitaller) is sent to Tripoli, but the situation remains unchanged.source
- 1187April – King Guy of Lusignan summons his vassals and marches north to Nazareth, to reduce Galilee to submission.source
- 1187May 1 – Battle of Cresson: A Muslim reconnaissance force (some 7,000 men) under Muzaffar al-Din Gökböri, defeats a small Crusader army near Nazareth. Only Gerard de Ridefort, commander of the Crusaders, and a handful of knights escape death or capture. The Muslims scatter and kill the Christian foot-soldiers (some 400 men) before pillaging the countryside.source
- 1187June 26 – Saladin regroups his Muslim forces and marches towards the Jordan River. His army numbers around 30,000 men and is divided into three columns. The following day Saladin encamps on the Golan Heights, in a marshy area near Lake Tiberias. Raiding parties are sent across the Jordan to ravage Christian territory between Nazareth, Tiberias, and Mount Tabor.source
- 1187June 30 – Saladin sends a contingent to block Tiberias and challenges the Crusaders by moving his main camp closer to Saffuriya – some 10 km west of Lake Tiberias. On July 1, he sends scouts to monitor an alternative road on his northern flank that connects Saffuriya and Tiberias. The following day he attacks Tiberias with a part of his forces, including siege equipment.source
- 1187July 2–3 – Saladin besieges Tiberias. The defenders, and Countess Eschiva II (wife of Raymond III) retreat to the citadel and sends messengers urging Guy of Lusignan to send help. Meanwhile, Guy and Raymond hold a war council to debate what should be done. Persuaded by Gerard de Ridefort and Raynald of Châtillon, Guy orders to march to the rescue of Tiberias.source
- 1187July 4 – Battle of Hattin: Egyptian army under Saladin defeats the Crusader army (some 20,000 men) under Guy of Lusignan at the Horns of Hattin. Guy is captured along with many nobles and knights, among them, Raynald of Châtillon. The latter is executed by Saladin himself. The Crusader States have no reserves to defend the castles and fortified settlements against Saladin's forces.source
- 1187July 14 – Conrad of Montferrat, an Italian nobleman, arrives in Tyre which ends the surrender negotiations with Saladin. He finds the remnants of the Crusader army (after the battle of Hattin) and makes the Tyrians swear loyalty to him. Reginald of Sidon and several other nobles give their support, Reginald goes to refortify his own castle of Beaufort on the Litani River.source
- 1187September 20–October 2 – Siege of Jerusalem: Egyptian army under Saladin captures Jerusalem, after the Crusaders led by Balian of Ibelin surrender the 'Holy City'. The take-over of the city is relatively peaceful; Saladin agrees to let the Muslims and Christians leave the city, taking with them their goods. Balian joins his wife Maria Komnene and family, in the County of Tripoli.source
- 1187October 29 – Gregory VIII issues the bull Audita tremendi, proposing the Third Crusade and negotiates with Emperor Frederick I (Barbarossa).source
- 1187November – Richard of Poitou, son of King Henry II, take the Cross to help capture Jerusalem from the Muslims. He empties his coffers for the mission and makes a deal with King William the Lion of Scotland, giving him full feudal autonomy in return for cash.source
- 1187Spring – The Crusaders under Raynald of Châtillon attack a large Muslim caravan, including members of Saladin's family, journeying from Cairo. Raynald takes the merchants, and their families with all their possessions to his castle of Kerak. Saladin demands the release of the prisoners and compensation for their losses. This is refused by Raynald, who pays no attention to his order.source
- 1187Orio Mastropiero, doge of Venice, secures loans from the Venetian nobility to finance the siege of Zadar. Pledging the income from the Salt Office becomes a staple of the city's finance.source
- 1187Summer – Egyptian troops led by Saladin begins a campaign that paves the way for further Muslim inroads into Christian territory. Al-Adil invades Palestine with the Egyptian army, and captures the strategic castle of Mirabel (Majdal Yaba). By mid-September, Saladin has captured the cities of Acre, Jaffa, Gaza and Ascalon (blockaded by the Egyptian fleet), along with some 50 Crusader castles.source
- 1187Spring – Emperor Isaac II (Angelos) sends a Byzantine expeditionary force under Alexios Branas to suppress the Vlach-Bulgarian Rebellion – but Alexios revolts against Isaac and is proclaimed emperor in Andrianople. He musters troops and advances on Constantinople in an attempt to seize it. However, Alexios is unable to bypass the city defenses and is defeated by the imperial forces led by Conrad of Montferrat, the emperor's brother-in-law. On the battlefield, Alexios is beheaded by Conrad's supporting footsoldiers and the rebel army flees the field.source
- 1187Siege of Lovech: Byzantine forces under Isaac II besiege the fortress city of Lovech in north-central Bulgaria. After a three-month siege, Isaac is forced to accept a truce by recognizing the joint-rule of Peter II and Ivan Asen I as emperor's (or tsar) over the territory, leading to the creation of the Second Bulgarian Empire (until 1396).source
- 1188May 14 – Saladin begins a campaign and marches north but finds Tripoli too strong to be besieged. He decides to take other Crusader fortifications and signs an 8-month truce with Prince Bohemond III of Antioch.source
- 1188May – Saladin besieges the Hospitaller fortress of Krak des Chevaliers, in Syria. Seeing that the castle is too well defended, instead he decides to march on the Castle of Margat, which he also fails to capture.source
- 1188July – Saladin marches through the Buqaia, and occupies Jabala and Lattakieh. From Lattakieh he turns inland and, after a few days of fierce fighting, takes Sahyun Castle (called Castle of Saladin) on July 29.source
- 1188September 4 – King Guy of Lusignan is released by Saladin after Ascalon is forced to surrender. Guy and his wife, Queen Sibylla of Jerusalem, seek refuge in Tyre, which is defended by Conrad of Montferrat.source
- 1188November – Richard of Poitou, son of Henry II, allies himself with Philip II and pays him homage. He promises to concede his rights to both Normandy and Anjou. Henry is overpowered by Richard's supporters, who chase him from Le Mans to Angers. They force him to accept peace by conceding to all demands, including the recognition of Richard as his successor.source
- 1188Spring – Siege of Tyre: Muslim forces under Saladin withdraw from Tyre after a 1½-month siege. For the Crusaders, the city-port becomes a strategic rallying point for the Christian revival during the Third Crusade.source
- 1189May – Saladin has reconquered the Crusader Kingdom of Jerusalem except for Tyre. The castles of Montréal and Kerak are captured by Muslim forces. In the north, Saladin has regained the Principality of Antioch except for Antioch and the castle of Al-Qusayr in Syria.source
- 1189August 28 – Siege of Acre: King Guy of Lusignan moves from Tyre, where Conrad of Montferrat refuses to hand over the city. Guy and his crusader army (some 7,000 men, including 400 knights) besiege Acre. He makes camp outside, to wait for more reinforcements.source
- 1189August – Byzantine Emperor Isaac II Angelos denies any crusader access and begins to hinder the German forces who try to cross his frontier. Frederick I progresses with force, by capturing Philippopolis and defeats a Byzantine army (some 3,000 men) that attempts to recapture the city. The Germans are delayed for six months in Thrace.source
- 1189September 3 – Richard I is crowned king of England in Westminster Abbey. During the coronation, a number of notable Jews are expelled from the banquet and rumours spread that Richard has ordered a massacre of the Jews. This causes an actual massacre of the Jews in London; among those killed is Jacob of Orléans, a respected French Jewish scholar.source
- 1189September – Guy of Lusignan receives reinforcements of some 12,000 men from Denmark, Germany, England, France, and Flanders. He encircles Acre with a double line of fortified positions. On September 15, Saladin launches a failed attack on Guy's camp.source
- 1189October 4 – Guy of Lusignan leads the crusader forces to launch a full-on assault on Saladin's camp. With heavy casualties on both sides, neither force gains the upperhand. On October 26, Saladin moves his camp from Acre to Mount Carmel (modern Israel).source
- 1189October 30 – An Egyptian fleet (some 50 ships) breaks through the crusader blockade at Acre and reinforces the port-city with some 10,000 men, as well as food and weapons.source
- 1190March 25 – Conrad of Montferrat sails south with a Crusader fleet (some 50 ships) from Tyre. As Conrad's fleet approaches the harbour of Acre, an equally sized Muslim fleet sorties out to meet the Crusaders in open battle. Eventually, the Ayyubid fleet is blockaded (supported by Danish and Pisan ships) in the port. Acre is again cut off from reinforcements; the city's supplies are exhausted, and the Muslim garrison has to resort to eating their own beasts. In the event, troops are driven to cannibalism.source
- 1190March – Frederick I leaves Adrianople to Gallipoli at the Dardanelles to embark, with the help of Byzantine transports, to cross into Asia Minor. On April 25, he enters territory of the Seljuk Sultanate of Rum under the rule of Sultan Kilij Arslan II. Although promised to let the German Crusaders pass peaceably through his domains, Kilij Arslan harasses Frederick's forces with hit-and-run attacks. On May 7, a Turkish army (some 10,000 men) is defeated at the Battle of Philomelion, by 2,000 Crusaders.source
- 1190April – After a long siege Muslim forces under Saladin capture Beaufort Castle from Reginald of Sidon who has offered to hand over the castle to Saladin on the condition that he has three months to remove his family to a place of safety. At the end of the three months, Saladin expects the castle to be handed over but finds that Reginald has used the time to strengthen the castle against a siege. He is imprisoned at Damascus – the castle's garrison finally surrenders in return for Reginald's release.source
- 1190May 5 – Siege of Acre: A Crusader force under King Guy of Lusignan attacks the city with three siege engines, but all are destroyed by the Muslim defenders with Greek fire, a highly flammable liquid. An Egyptian flotilla is able to avoid the Pisan fleet (some 50 ships) and resupply the city with new provisions. Saladin launches a massive eight-day attack on the Crusaders two weeks later. Meanwhile, in the Crusader camp the conditions are deteriorating by disease and famine, among the soldiers.source
- 1190May 18 – Battle of Iconium: German forces under Frederick I defeat the Seljuk army (40,000 men) in a pitched battle. They are routed, leaving the city at the mercy of the German Crusaders. Frederick does not pursue the Seljuks, because his forces have been weakened by food shortage for the previous weeks. His 23-year-old son, Frederick VI, takes Iconium (modern-day Konya) and proceeds to massacre the citizens. The Germans take booty amounting to 100,000 marks in the Turkish capital.source
- 1190September – Richard I arrives in Sicily at the head of a Crusader army and demands the release of his sister Joan of England, queen of Sicily, who is held hostage by the usurper Tancred of Lecce. He also demands that Tancred fulfill the financial commitments made by the late King William II (the Good) to the Crusade. Tancred refuses the financial demand but he agrees to release Joan, on September 28.source
- 1190October 4 – Richard I captures Messina, after looting and burning the city he establishes his base there. Richard insists that his own banner be erected over the city, but this creates tension between Richard and Philip II, who has joined him with his forces. Tancred accepts a peace agreement, and pays Richard 20,000 ounces of gold. Friendly relations are restored, Richard agrees to split the gold with Philip.source
- 1190Isaac II starts a campaign against the Bulgarians, who claim their independence. After passing the Balkan Mountains, Isaac marches westward to besiege Tarnovo, the new Bulgarian capital. Meanwhile, the Byzantine fleet reaches the Danube River in order to block the way of Cuman reinforcements from the North. The defense of Tarnovo is led by Ivan Asen I, emperor (Tsar) of Bulgaria. After spreading rumors of the arrival of a Cuman army to relieve the city, Isaac orders to retreat to Stara Zagora.source
- 1190Siege of Silves – the Almohad caliph, Abu Yusuf Yaqub al-Mansur, fails to reconquer Silves, Portugal.source
- 1190King Henry VI, eldest son of Frederick I, grants Henry I (the Brave) the title of Duke of Brabant. Henry tries to expand his power and soon quarrels with Count Baldwin V, duke of Hainaut.source
- 1190Battle of Tryavna: Byzantine forces under Isaac II are ambushed and defeated by the Bulgarians in a mountain pass, near Tryavna. In panic, the Byzantines break up and begin a disorganized retreat. Isaac barely escapes, his Varangian Guard has to cut a path through their own soldiers, enabling their emperor's flight from the rout. The Bulgarians capture the imperial treasure, including the golden helmet of Isaac, his crown, and the Imperial Cross which contains a wooden piece of the Holy Cross.source
- 1190Spring – A German expeditionary force (some 15,000 men) led by Emperor Frederick I (Barbarossa) marches towards Constantinople, on the way to the Holy Land. Emperor Isaac II (Angelos), suspicious that Frederick is planning to conquer Constantinople, attempts to stop him by attacking the Crusaders. The German forces are too strong and they capture Adrianople. A peace treaty is signed by both Isaac and Frederick, that ensures the Germans are given supplies, and free passage through to Palestina.source
- 1191February 13 – Muslim forces attack and succeed in breaking the siege lines around Acre. Though the Crusaders seal the breach, Saladin is able to replenish the garrison, by sending reinforcements. For the defenders, this is a temporary respite – and Saladin is having difficulty keeping his army together. Taqi al-Din, Saladin's nephew and one of his most effective commanders, fails to rejoin the siege. He divides his army for his own territorial ambitions in modern southeastern Turkey. Later in the spring, Taqi al-Din brings his forces to support the double-siege at Acre.source
- 1191April 20 – King Philip II (Augustus) arrives with a Genoese flotilla (six ships) filled with French nobles and his cousin Conrad of Montferrat at Acre. He begins the construction of seven immense stone-throwers – which are used to bombard the city, on May 30. One of the siege-machines is called by the French soldiers the "Evil Neighbour" and "God's Own Sling", and a grappling ladder is known as the "Cat". Meanwhile, the walls of Acre are pounded relentlessly. The Crusaders built earthworks, ramparts, and ditches to protect themselves against Muslim attacks.source
- 1191June 8 – Richard I arrives with 25 ships and a strong advanced guard at Acre. Upon reaching the city, he is greeted by Philip II and then sets up his camp. Richard becomes almost immediately seriously ill (called Arnaldia) and is confined to his tent. Nevertheless, he leaps into action and secretly initiates negotiations with Saladin. After having been refused a personal meeting, Richard sends a Moroccan prisoner to Saladin's camp as a sign of goodwill. Finally, Saladin accepts a three-day truce and allows his younger brother, Al-Adil, to negotiate with Richard.source
- 1191July 3 – The Crusaders change their strategy from battering the Acre fortifications to exploiting the breaches. After only the first day of these all-out attacks to seize the city, Saladin's governor sends a message stating he would surrender unless he is relieved. Both French sappers and English catapults manage to make significant breaches in the walls – but the assault is repulsed. Meanwhile, Richard I, still unable to walk due to illness, is carried on a regal stretcher near the front lines from where he picks off Muslim troops on the walls using his crossbow.source
- 1191July 12 – Siege of Acre: The Muslim garrison surrenders to Philip II, which includes an agreement to give up the 70 Muslim ships in the harbour without Saladin's consent, and by the time that he learned of this intention, the city has already capitulated. Conrad of Montferrat, who has negotiated the surrender, raises the banners of the Kingdom of Jerusalem, and of the Crusader leaders Philip II, Richard I, and Leopold V of Austria, on the city's walls and towers. The siege of Acre has taken nearly two years and has cost some 100,000 Christian casualties.source
- 1191July 31 – Philip II, accompanied by Conrad of Montferrat, departs to Tyre and returns to France. He leaves behind a French army (some 10,000 men) under the command of Hugh III, duke of Burgundy. Richard I is left in sole command of the Crusader forces in the Levant. Back in France, Philip schemes with Richard's brother, Prince John, to dispossess Richard of his French lands while he is still away, but the intervention of John's mother, Queen Eleanor of Aquitaine, foils the plan. Meanwhile, Richard rebuilds and strengthens the walls of Acre.source
- 1191August 20 – Massacre of Ayyadieh: Richard I orders the execution of some 3,000 Muslim prisoners (captured after the siege of Acre), including women and children. The bound prisoners are mercilessly beheaded or cut down using swords and lances. A small group of Saladin's forces (located on Mount Tabor) tries to intervene in order to stop the massacre – but they are repelled. In response, Saladin executes all the Latin prisoners he himself has taken. In the Ayyubid Sultanate, Latin prisoners are tortured and murdered in reprisal for their infamy.source
- 1191August 22 – Richard I leads the Crusader forces (some 15,000 men) out of Acre and marches south along the coast, being closely supported by the Crusader fleet, carrying most of the supplies. Meanwhile, Saladin has given his son Al-Afdal orders to remain close to the Crusader rearguard under Hugh III, and strengthens the Muslim garrison both in Jerusalem and Ascalon with 20,000 men each. Richard advances at an unexpectedly slow pace and decides to make camp near Haifa – which Saladin has dismantled shortly before the fall of Acre.source
- 1191August 25–26 – Richard I leads a fast-moving advance-guard and establishes a strong position at the fortress near Merle before Saladin arrives. He then hurries back to support the rearguard, to regain contact with the Crusader forces. Richard reorganizes his marching column. The elite Templar and Hospitaller knights hold the van and rearguard, while Richard and a central mass of knights are screened on their landward left side by dense ranks of well-armoured infantry, whose panoply makes them almost immune to Muslim missile attacks.source
- 1191August 30 – Richard I advances in three divisions towards Caesarea, with the Crusader fleet accompanying him off-shore. The rearguard becomes engaged, and the French forces under Hugh III are nearly annihilated. Saladin has selected this part of the road for a major assault, but the Muslim attacks have little effect. The main effort to harass the Crusaders from a distance fails. Richard makes camp at the mouth of the Zarqa River, despite the intense heat, thirst, and the loss of many lives. Both armies rest and watch each other the rest of the day.source
- 1191August – Margaritus of Brindisi defeats the Pisan fleet during the siege of Naples, and nearly destroys the late-arriving Genoese contingent. He keeps the harbour approaches open for supplies and reinforcements.source
- 1191September 2 – Richard I leads the Crusader army past Caesarea and is forced to turn inland, where he is separated from his supply ships. Saladin personally attacks the massed Crusader infantry, by bombarding them with arrows before charging their line with cavalry. During this brief but indecisive engagement, Richard is struck in the side by a crossbow bolt – though his armour absorbs much of the blow. By the end of the day, only 25 miles from Jaffa, Richard allows his men to rest (while recovering from his wounds) and re-assembles his forces.source
- 1191September 5 – Richard I dispatches envoys to request for peace talks and meets Al-Adil under a flag of truce. Saladin allows the Crusaders to forage in the Forrest of Arsuf. But Richard is in no mood for actual negotiations and demands nothing less than the cession of Palestina. Al-Adil at once breaks off the negotiations. Richard orders his forces to march quietly through the woods, and the Crusaders manage to reach the limits of the forest unhindered and unharmed. The Crusaders pitch their tents in the "Rochetaille" and rest for the night.source
- 1191September 7 – Battle of Arsuf: Richard I fights a pitched battle – while waiting for the ideal moment to mount a counterattack. However, the Hospitaller knights led by Garnier de Nablus break formation and launch a charge. Richard restores order in the turmoil and is forced to commit his entire army to support the attack. The Muslim forces flee in panic, but Saladin rallies them in time to defend his camp, and even to lead a counter-charge. By evening, Richard has defeated the Muslim forces, and Saladin retreats in good order to Ramallah.source
- 1191September 9–10 – Richard I and his Crusader forces march on to Jaffa and set about rebuilding its fortifications, which Saladin has destroyed by his scorched-earth policy. Mid-September, a large number of French nobles begin to resist – such as Hugh III. They argue about the refortification of Jaffa, instead of a direct strike inland on Jerusalem. Meanwhile, Saladin evacuates and demolishes most of the fortresses of southern Palestina.source
- 1191October 29 – Richard I marches with the Crusader forces onto the plains east of Jaffa and begins the slow, steady work of rebuilding a string of sites through which to advance on Jerusalem. During this period, the Third Crusade degenerates into a series of skirmishes. Richard uses diplomacy alongside military threats, hoping to bring Saladin to the point of submission before he has to make the siege of Jerusalem itself.source
- 1191October – William de Longchamp tries to hold the Tower of London against John's supporters for three days. He surrenders the Tower and escapes to continue his support for Richard I. On October 29, William is captured when disguised as a female merchant. John orders that he be expelled from the country.source
- 1191November 13 – Battle of Tarain: Sultan Muhammad of Ghor invades northern India, but is defeated by Rajput forces under Prithviraja III, ruler of Ajmer and Delhi. Prithviraj marches against the Ghurid army (some 100,000 men) with infantry, cavalry, and an elephant force. He repulses the Ghurid invasion near Taraori (some 70 miles of Delhi), Muhammad escapes the battlefield.source
- 1191December – Richard I and his Crusader forces occupy Latrun, while the advance-guard takes Bayt Nuba. He is warned by his nobles to take no further risks – due to winter conditions, and for being cut off if he presses on. Amongst those keenest on continuing are the French Crusaders under Hugh III. On December 25, Richard is now just 12 miles from Jerusalem.source
- 1191Siege of Silves – Almohad forces under Caliph Abu Yusuf Yaqub al-Mansur reconquer Silves in Portugal. In the same campaign, the Almohads take also Alcácer do Sal, while Palmela and Almada are sacked.source
- 1191King Jayavarman VII of the Khmer Empire sacks the capital of Champa (approximate date).source
- 1191Henry VI is forced to raise the siege of Naples, due to an epidemic, and returns to Germany. Upon Henry's retreat, the Lombard cities that have surrendered to the Germans resubmit to Tancred of Lecce, king or usurper of Sicily. The populace of Salerno turn against Empress Constance during her visit to the city, and Margaritus of Brindisi delivers her to Tancred at Messina. Later, Constance is imprisoned at Castel dell'Ovo at Naples.source
- 1191Autumn – Emperor Isaac II (Angelos) leads a punitive expedition against Grand Prince Stefan Nemanja. The Serbians are defeated at South Morava and retreat into the mountains. The Byzantine forces raid all lands around the bank of the river and burn down Stefan's court in Kuršumlija. Nemanja does not surrender and starts irregular warfare and Isaac negotiates a peace treaty. The Serbians are forced to give up a large part of their conquests, east of the Velika Morava, and recognize Byzantine rule. Isaac recognizes Nemanja as Grand Prince of Serbia.source
- 1191Prince Yury Bogolyubsky leads a rebellion of disaffected Georgian nobleman against his ex-wife, Queen Tamara (the Great), but her forces win a two pitched battle at Tmogvi and Erusheti. Yury is captured, and Tamara allows him to withdraw to Constantinople.source
- 1192April 28 – Conrad of Montferrat (Conrad I), King of Jerusalem, is assassinated in Tyre, only days after his title to the throne is confirmed by election. The killing is carried out by Hashshashin, later the basis of folk etymology for the English word "assassin."source
- 1192August 5 – Battle of Jaffa: Richard I of England defeats the forces of Saladin and ends hostilities, paving the way for a truce.source
- 1192December 11 – Returning from the Third Crusade, Richard I of England is taken prisoner by Leopold V, Duke of Austria, and secured at Dürnstein.source
- 1192Second Battle of Tarain in India: The Ghurid forces of Mu'izz al-Din are victorious over Prithviraj Chauhan.source
- 1193May – The Pisan colony at Tyre plots to seize the city, and hand it over to Guy of Lusignan – the ruler of Cyprus. King Henry I of Jerusalem arrests the ringleaders, and orders that the colony be reduced to only 30 people. The Pisans retaliate, by raiding the coastal villages between Tyre and Acre.source
- 1193Ghurid forces under Qutb al-Din Aibak capture Delhi. General Muhammad bin Bakhtiyar Khilji sacks and burns the ancient city of Nalanda, India's greatest Buddhist seat of learning, and the university of Vikramashila.source
- 1194March 10 – Sultan Toghrul III is defeated and killed in battle with Ala ad-Din Tekish, near Rey in Persia – ending the Seljuq dynasty of Hamedan. The Seljuk Empire passes to the Khwarazmian dynasty.source
- 1194March 12–28 – Richard I besieges Nottingham Castle (occupied by supporters of John) – which falls after a siege of several days. Richard is aided by English troops under Ranulf de Blondeville and David of Scotland.source
- 1194July 3 – Battle of Fréteval: English forces under Richard I defeat Philip II, and capture the French baggage train. It contains the royal archives – including a list of the treasure of the French kingdom (transported in a wagon behind the army). Philip withdraws across the River Epte, where the bridge collapses under the weight of the retreating army. Meanwhile, Richard sacks the town of Évreux, which is a possession of Philip's ally, John.source
- 1194October – Leo I ("Lord of the Mountains"), ruler of Armenian Cilicia, invites Bohemond III of Antioch to Bagras, ostensibly to resolve their differences. Upon Bohemond's arrival, Leon captures him and his family, and takes them to the capital of Sis.source
- 1195June 1 – Battle of Shamkor: Georgians defeat the Ildenizids of Azerbaijan.source
- 1195July 18 – Battle of Alarcos: Almohad ruler Abu Yusuf Ya'qub al-Mansur decisively defeats Castilian King Alfonso VIII.source
- 1195Alexius III Angelus overthrows Isaac II, and becomes Byzantine Emperor.source
- 1196December – Emperor Alexios III Angelos is threatened by Emperor Henry VI, Holy Roman Emperor, who demands 5,000 pounds of gold or the Byzantines will face an invasion, this due to a convoluted system of dynastic claims of Henry gaining control of Alexios' daughter Irene Doukaina. The amount is negotiated down to 1,600 pounds of gold – with Alexios plundering the imperial tombs within the Church of the Holy Apostles – as well as levying a heavy and unpopular tax, known as the Alamanikon (or German Tax).source
- 1196Battle of Serres: Bulgarian forces under Tsar Ivan Asen I defeat the Byzantine army near Serres. During the winter Ivan continues his campaign in Central Macedonia and captures many Byzantine fortresses.source
- 1196Ch'oe Ch'ung-hŏn, a Korean general, massacres his rivals and restores unity. After a coup d'état, he takes full power and becomes prime-minister of the Korean state Goryeo (until 1219).source
- 1196Spring – William Fitz Osbert, a rebel leader, leads an uprising of the poor against the rich in London. He gathers over 52,000 supporters, stocks of weapons are cached throughout the city by breaking into the houses of the rich. Finally, the riots are suppressed and William is hanged, drawn and quartered by orders of Hubert Walter, archbishop of Canterbury.source
- 1197June/July – German crusaders launch a raid on Silves.source
- 1197Autumn – A brothers' quarrel breaks out between Emeric, King of Hungary and his younger brother Duke Andrew. After a brief skirmish, Emeric is forced to cede Croatia and Dalmatia to Andrew, who begins to administer the provinces as a de facto sovereign monarch.source
- 1197Genghis Khan (or Temüjin), with help from the Keraites, defeats the Jurchens of the Jin dynasty. The Jin bestow Genghis' blood brother Toghrul with the honorable title of Ong Khan, and Genghis receives the lesser title of j'aut quri. During the winter, Toghrul returns and re-establishes himself as leader of the Keraites.source
- 1197Summer – Gruffydd ap Rhys II is captured and handed over to Gwenwynwyn, who transfers him to the English. Gruffydd is imprisoned at Corfe Castle and Maelgwn ap Rhys claims the throne.source
- 1197Civil war era in Norway: conflict between king Sverre of Norway and the party of Bagler.source
- 1197Northern Crusades: Danish forces led by King Canute VI raid the area of present-day Estonia.source
- 1197Summer – Henry VI takes cruel measures to put down Jordan Lupin's insurrection in Sicily and southern Italy, which has been provoked by the oppression of his German officials.source
- 1197Winter – Duke Ottokar I forces his brother, Vladislaus III, to abandon Bohemia. Ottokar restores power and Vladislaus accepts the margravial title of Moravia.source
- 1198September 27 – Battle of Gisors: Richard I defeats the French forces led by Philip II (Augustus) at Courcelles-lès-Gisors, in Picardy. Richard captures three castles on the border of the Vexin. The French troops, many of them mounted, crowd the bridge leading into Gisors Castle but it collapses beneath them. The French king is among those who plunge into the water in his armor. Many French knights drown, but Philip is pulled to safety.source
- 1199January 13 – A short-lived truce is declared, between the Kings Richard I (the Lionheart) and Philip II (Augustus). Two of Europe's most powerful rulers meet on the banks of the Seine River, while shouting terms to one another. With a peace secured, Richard is able to refocus on bringing internal order to the south of the Angevin Empire.source
- 1199March 26 – Richard I besieges the unarmed castle of Châlus-Chabrol, and is shot in the left shoulder with a crossbow, by the French boy Pierre Basile. The war between the kingdoms of England and France has become so brutal, that Hugh of Lincoln is warned that "nothing now is safe, neither the city to dwell in nor the highway for travel".source
- 1199Summer – Philip II renews his war against England, supporting the rival claim to the English throne of John's 12-year-old nephew Arthur I, duke of Brittany.source
- 1199Summer – After uncovering a plot against him, Emeric, King of Hungary defeats his brother Duke Andrew in a battle, forcing him into exile in Austria. Thereafter, border clashes occurs between Hungary and Austria.source