1136

By place

Levant

• Spring - Raymond of Poitiers, son of the late Duke William IX of Aquitaine, arrives at Antioch. Patriarch Ralph of Domfront arranges a marriage in secret with her 8-year-old daughter Constance. She is kidnapped and taken to the cathedral in Antioch, where Ralph hastily marries her to Raymond. Alice leaves the city, now under the control of Raymond and Ralph, and retires to Latakia, Syria.
• August 17 - Al-Rashid is deposed after a 1-year reign and flees to Isfahan. He is succeeded by his uncle Al-Muqtafi who becomes the new caliph of the Abbasid Caliphate in Baghdad.

  Europe

• May 28 - In Russia, the people of Novgorod depose and imprison Prince Vsevolod of Pskov. Novgorod asserts its independence from Kiev, but accepts protection from neighboring Kievan princes. In July, Vsevolod along with his wife and family are released.
• Summer - Emperor Lothair III invades southern Italy in response to the appeal of Emperor John II and conquers Apulia from King Roger II of Sicily. Duke Grimoald of Bari, supported by Lothair III, rebels against Roger.
• December 14 - King Harald IV is murdered by Sigurd Slembe, an illegitimate son of the late King Magnus III. He is succeeded by his sons Inge I and his half-brother Sigurd II.

  England

• Spring - 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, and marches to Durham. David agrees to negotiate a peace between the two countries.
• February 5 - Treaty of Durham: A peace treaty is signed by Stephen and David I. The Scots are allowed to keep Carlisle and a part of Cumberland in return for stopping their advance. David refuses an oath of allegiance, as his loyalties rest with Matilda.
• October - Battle of Crug Mawr : King Owain Gwynedd defeats the Norman and Flemish forces under Robert Fitz Martin, securing the control of Ceredigion.

  Africa

• The city of Béjaïa repeals a Genoan naval assault.

  Asia

• Sultan Mudzaffar Shah I establishes the Kedah Sultanate at .

  By topic

Arts and Culture

• The Basilica of Saint-Denis is completed to designs by Abbot Suger in Paris, France.
• Peter Abelard writes the Historia Calamitatum, detailing his relationship with Heloise.

  Religion

• Hildegard of Bingen, becomes abbes of the Benedictine monastery of Disibodenberg, upon the death of Jutta von Sponheim.
• Melrose Abbey is founded by Cistercian monks at the request of David I.