Year 1150 (MCL) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. Events By place Byzantine Empire Battle 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). Levant Spring – 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. Battle 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. The city of Ashkelon is fortified with 53 towers by order of the 17-year-old Caliph Al-Zafir, as it is the most strategic frontier fortress of the Fatimid Caliphate. Europe February 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. The University of Paris (known as the Sorbonne) is founded. The first doctorate degree is awarded in Paris. The city of Rinteln is founded on the northern bank of the Weser River in Lower Saxony (modern Germany). England November 10 – Dryburgh Abbey located in the Scottish Borders is founded by Lord Hugh de Morville. Cubbie Roo's Castle is built on Wyre (Orkney Islands) and is first mentioned in the Orkneyinga Saga. Christchurch Priory located in Dorset is founded by Earl Baldwin de Redvers. The Irish Chronology (Chronicon Scotorum) is written (approximate date). By topic Religion The 15-year-old King Inge I (the Hunchback) of Norway calls for a meeting at Bergen of all religious leaders in anticipation that the English cardinal Nicholas Breakspear will found an archbishopric at Trondheim. Peter Lombard, a French scholastic theologian,