Year 1136 (MCXXXVI) was a leap year starting on Wednesday (link will display the full calendar) of the Julian calendar. Events By place Levant Spring – Raymond of Poitiers, son of the late Duke William IX of Aquitaine, arrives at Antioch. Patriarch Ralph of Domfront (against the wishes of Princess Alice) 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 (modern Iran). He is succeeded by his uncle Al-Muqtafi who becomes the new caliph of the Abbasid Caliphate in Baghdad (until 1160). 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 (they are exiled to an uncle in Kiev). Summer – 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. December 14 – King Harald IV of Norway is murdered by Sigurd Slembe, an illegitimate son of the late King Magnus Barefoot. He is succeeded by his sons Inge I ("the Hunchback) and his 3-year-old 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 (with Flemish mercenaries), 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 (daughter of the late King Henry I). October – 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). Africa The city of Béjaïa (modern Algeria) repeals a Genoan naval