1139

Template:Use mdy dates Template:About year Template:Year nav Template:C12 year in topicYear 1139 (MCXXXIX) was a common year starting on Sunday of the Julian calendar.

Events

By region

Asia

• July 8 or August 21 – Jin–Song Wars – Battle of Yancheng: Song dynasty general Yue Fei defeats an army led by Jin dynasty general Wuzhu.<ref>Template:Cite book</ref>
• September 30 – A magnitude 7.7 earthquake strikes the Caucasus mountains in the Seljuk Empire, causing great devastation and killing 300,000 people.<ref name="Ulomov_&_Medvedeva_2014">Template:Cite web</ref>

Europe

• January 25 – Godfrey II, Count of Louvain becomes Duke of Lower Lorraine.<ref>Template:Cite book</ref><ref>Template:Cite book</ref><ref>Template:Cite book</ref>
• April 8 – Second Council of the Lateran: Roger II of Sicily is excommunicated by Pope Innocent II.<ref>Template:Cite book</ref><ref>Template:Cite book</ref>
• April 9 – The Treaty of Durham is signed, between King Stephen of England and David I of Scotland.<ref>Template:Cite book</ref><ref>Template:Cite book</ref><ref>Template:Cite book</ref>
• July 22 – Pope Innocent II, invading the Kingdom of Sicily, is ambushed at Galluccio and taken prisoner.<ref>Template:Cite book</ref><ref>Template:Cite book</ref>
• July 25
  • By the Treaty of Mignano, Pope Innocent II proclaims Roger II of Sicily as King of Sicily, Duke of Apulia and Prince of Capua.<ref>Template:Cite book</ref><ref>Template:Cite book</ref><ref>Template:Cite book</ref>
  • Battle of Ourique: The independence of Portugal from the Kingdom of León is declared after the Almoravids, led by Ali ibn Yusuf, are defeated by Prince Afonso Henriques. He then becomes Afonso I, King of Portugal, after calling the first assembly of the Estates-General of Portugal at Lamego, where he is given the Crown from the Bishop of Bragança, to confirm the independence.<ref>Template:Cite journal</ref><ref>Template:Cite book</ref>

By topic

Education

• King's School, Pontefract, in England is founded.

Religion

• April – Second Council of the Lateran: The Anacletus schism is settled, and priestly celibacy is made mandatory within the Catholic Church.<ref>Template:Cite book</ref><ref>Template:Cite book</ref><ref>Template:Cite book</ref>
• November – Alberic of Ostia, papal legate to Outremer, convenes a legatine council in the cathedral of Antioch to examine the conduct of the Latin patriarch. The council is also attended by the Armenian Catholicos Gregory III and marks a symbolic beginning for Armenian-Latin ecclesiastic high-level contacts.<ref>Template:Cite book</ref><ref>Template:Cite book</ref>

Births

• June 16 – Emperor Konoe of Japan (d. 1155)<ref>Template:Cite book</ref><ref>Template:Cite book</ref>
• Agnes II – abbess and artist (d. 1203)
• Conon of Naso, Basilian abbot (d. 1236)<ref>Template:Cite book</ref>

Deaths

• January 25 – Godfrey I, Count of Louvain and Duke of Lower Lorraine (as Godfrey VI)<ref>Template:Cite book</ref><ref>Template:Cite book</ref><ref>Template:Cite journal</ref>
• February 18 – Prince Yaropolk II of Kiev (b. 1082)<ref>Template:Cite journal</ref><ref>Template:Cite journal</ref>
• October 20 – Henry X, Duke of Bavaria<ref>Template:Cite book</ref><ref>Template:Cite book</ref>
• December – Roger of Salisbury, English bishop<ref>Template:Cite journal</ref><ref>Template:Cite book</ref><ref>Template:Cite book</ref>
• Empress Xing of China (b. 1106)<ref>Template:Cite book</ref>