/year

Constantine IV

Byzantine emperor from 668 to 685

12 dated entries naming Constantine IV, drawn from 8 separate years between 652 CE and 685 CE. Nothing here is written by us: each line is the sentence a Wikipedia year article used, and the link beside it opens the exact revision.

JSONWikipedia articleWikidata Q41605

7th century

  • 652Constantine IV, Byzantine emperor (d. 685)source
  • 654Emperor Constans II appoints his son Constantine IV, age 2, co-emperor (Augustus). He is too young to rule as monarch of the Byzantine Empire, and his title remains a given name.source
  • 668July 15 – Emperor Constans II is killed under mysterious circumstances in his bath, during a mutiny at Syracuse. The Byzantine court returns to Constantinople after an absence of 5 years, in which the Muslim-Arabs have made annual invasions and devastations of Anatolia. Probably assassinated by his chamberlain after a 27-year reign, Constans is succeeded by his son Constantine IV (the "Bearded"), alongside his brothers Heraclius and Tiberius as co-emperors.source
  • 678Autumn – Siege of Constantinople: Emperor Constantine IV confronts the Arab besiegers in a head-on engagement. The Byzantine fleet, equipped with Greek fire, destroys the Muslim fleet at Sillyon, ending the Arab threat to Europe, and forcing Yazid (a son of caliph Muawiyah I) to lift the siege on land and sea. The victory also frees up forces that are sent to raise the two-year siege of Thessalonica by the local Slavic tribes.source
  • 678April 11 – Pope Donus dies at Rome, after a reign of 1 year and 160 days. He is succeeded by Agatho I, who becomes the 79th pope. He is the first pope to stop paying tribute to Emperor Constantine IV upon election.source
  • 679Emperor Constantine IV signs a peace treaty, of a nominal 30-year duration, with Caliph Mu'awiya I of the Umayyad Caliphate. Constantine pays an annual tribute of 3,000 (nomismata) pounds of gold, 50 horses and 50 slaves. The Arab garrisons are withdrawn from their bases on the Byzantine coastlands, including Crete & Cyzicus.source
  • 680King Perctarit makes his son Cunipert co-ruler of the Lombard Kingdom. He signs a formal peace treaty with Constantine IV.source
  • 680Battle of Ongal: The Byzantine army (25,000 men) under Constantine IV is defeated by the Bulgars and their Slavic allies in the Danube Delta. Bulgar cavalry force the Byzantines into a rout, while Constantine (suffering from leg pain) travels to Nesebar to seek treatment.source
  • 680Byzantine–Bulgarian War: The Bulgars under Asparukh subjugate the country of current-day Bulgaria, north of the Balkan Mountains. Emperor Constantine IV leads a combined land and sea operation against the invaders and besieges their fortified camp in Dobruja.source
  • 681Byzantine–Bulgarian War: Emperor Constantine IV is forced to acknowledge the Bulgar state in Moesia, and to pay protection money to avoid further inroads into Byzantine Thrace. Consequently, Constantine creates the Theme of Thrace of the Byzantine Empire (located in the south-eastern Balkans).source
  • 685July 10 – Constantine IV, Byzantine emperor (b. 652)source
  • 685July 10 – Emperor Constantine IV dies of dysentery at Constantinople after a 17-year reign, and is succeeded by his 16-year-old son Justinian II.source

Named in the same entries