1115 CE

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). Matilda, margravine of Tuscany, dies at Bondeno. During her reign she waged an intermittent war with Henry IV, Holy Roman Emperor, over the inheritance rights of her fiefs in Lombardy and Tuscany. 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.

In the 1110s, the 12th century.

Geopolitics & Diplomacy

  • The Jin dynasty (1115–1234) (or Great Jin) is created by the Jurchen tribal chieftain Taizu (or Aguda). He establishes a dual-administration system: a Chinese-style bureaucracy to rule over northern and northeast China.source

Conflict & Security

  • February 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
  • September 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
  • The 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
  • An assault on Norse-Gaelic Dublin by Diarmait mac Énna meic Murchada and Conchobar Ua Conchobair Failge, joint Kings of Leinster, is thwarted by Domnall Gerrlámhach.Irelandsource

Exploration & Expansion

  • The Crusader castle of Montreal (located in Jordan) is commissioned by King Baldwin I of Jerusalem, during an expedition against the Seljuk Turks.source

Religion & Belief

  • Arnulf of Chocques is accused of sexual relations with a Muslim woman. He is briefly removed from his position as patriarch of Jerusalem.source
  • The 19-year-old Minamoto no Tameyoshi, Japanese nobleman and samurai, gains recognition by suppressing a riot against Emperor Toba at a monastery near Kyoto (approximate date).source
  • Peter Abelard, French scholastic philosopher, becomes master of the cathedral school of Notre-Dame and meets Héloïse d'Argenteuil.source
  • Clairvaux Abbey is founded by Bernard, French abbot and a major leader in the reform of Benedictine monasticism, in France.source
  • Hugh of Saint Victor, French theologian and writer, joins the Victorines (at the Augustinian Abbey of St. Victor) in Paris.source

Births

  • April 18 – Gertrude of Süpplingenburg, German duchess and regent (died 1143)source
  • September 18 – Empress Wu (Song dynasty), Chinese consort (died 1197)source
  • Aubrey de Vere, 1st Earl of Oxford, English nobleman (approximate date)source
  • Peter Cellensis, French abbot and bishop (died 1183)source
  • Magnus IV ("the Blind"), king of Norway (approximate date)source
  • Hugo Etherianis, Italian cardinal and adviser (died 1182)source
  • Eustathius of Thessalonica, Byzantine archbishop (died 1195)source
  • Gilbert de Clare, 1st Earl of Hertford, English nobleman (died 1152)source
  • William V, Marquis of Montferrat ("the Old"), ruler of the March of Montferrat (died 1191)source
  • Roger de Pont L'Évêque, Norman archbishop (died 1181)source
  • Erling Skakke, Norwegian nobleman (approximate date)source
  • Pedro Fernández de Castro (Grand Master of the Order of Santiago), Spanish nobleman (died 1184)source
  • Li Tao (or Renfu), Chinese historian and writer (died 1184)source
  • Welf VI, margrave of Tuscany (House of Welf) (died 1191)source
  • William V, Marquess of MontferratItalysource

Deaths

  • 16 May – Lambert of Arras, Flemish bishopsource
  • July 8 – Peter the Hermit, French religious leadersource
  • July 24 – Matilda, margravine of Tuscany (born 1046)source
  • July 24 – Matilda, margravine of Tuscany, dies at Bondeno. During her reign she waged an intermittent war with Henry IV, Holy Roman Emperor, over the inheritance rights of her fiefs in Lombardy and Tuscany.source
  • September 27 – Bonfilius, Italian Saint, bishop of Folignosource
  • December 22 – Olav Magnusson, king of Norway (born 1099)source
  • December 23 – Ivo of Chartres, French bishop (born 1040)source
  • December 30 – Theodoric II, Duke of Lorrainesource
  • Reynelm (or Reinelm), English bishop of Herefordsource
  • Odo of Champagne (Odo II or Eudes), French noblemansource
  • Eight Deer Jaguar Claw, Mixtec ruler (born 1063)source
  • Shin Arahan, Burmese religious advisersource
  • Turgot of Durham, English churchman, bishop of St Andrewssource
  • Abu al-Mu'in al-Nasafi, Arab theologian (or 1114)source
  • Conchobar Ua Conchobair Failge, slain in Dublin.Irelandsource
  • Diarmait mac Énna meic Murchada, slain in Dublin.Irelandsource