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- June 28 – Battle of Ager Sanguinis: Ilghazi, the ruler of Aleppo, wipes out a Crusader army from the Principality of Antioch.
- August 14 – Battle of Hab: Baldwin II of Jerusalem's Crusaders defeat Ilghazi's army, saving Antioch.
- August 20 – Battle of Bremule: Henry I of England routs Louis VI.
- September 19 – A severe earthquake hits Gloucestershire & Warwickshire, England.
- Robert Bruce, 1st Lord of Cleveland and Annandale, grants and confirms the church of St. Hilda of Middleburg (Middlesbrough) to Whitby.
- February 2 – Pope Callixtus II succeeds Pope Gelasius II, as the 162nd pope.
- The Knights Templar is founded by Hugh de Payns.
- The Councils of Toulouse and Reims are held.
- In his Pingzhou Table Talks published in this year, Song Dynasty Chinese author Zhu Yu writes of the earliest known use of separate hull compartments in ships.
- Zhu Yu's book is the first to report the use of a magnetic compass for navigation at sea, although the first actual description of the magnetic compass is by another Chinese writer (Shen Kuo) in his Dream Pool Essays (published in 1088).
- February 28 – Emperor Xizong of Jin, third ruler of the Jurchen Jin Dynasty (d. 1150)
- July 7 – Emperor Sutoku of Japan (d. 1164)
- Matthias I, Duke of Lorraine (d. 1176)
- January 29 – Pope Gelasius II
- July 17 – Baldwin VII, Count of Flanders
- Muirchertach Ua Briain, High King of Ireland
- Alan IV, Duke of Brittany
- Roger of Salerno, regent of Antioch
- Henry de Beaumont, 1st Earl of Warwick
- Stratton, J.M. (1969). Agricultural Records. John Baker. ISBN 0-212-97022-4.
- McGrank, Lawrence (1981). "Norman crusaders and the Catalan reconquest: Robert Burdet and te principality of Tarragona 1129-55". Journal of Medieval History. 7 (1): 67–82. doi:10.1016/0304-4181(81)90036-1.
- Weber, N. "Petrobrusians". Catholic Encyclopedia. Retrieved 2 January 2012.