1131 in history

Born in 1131

Jan 14 Valdemar I of Denmark King of Denmark from 1157 until his death in 1182.

Died in 1131

Jan 7 Canute Lavard a Danish prince. Later he was the first Duke of Schleswig and the first border prince who was both a Danish and a German vassal, a position leafing towards the historical double position of Southern Jutland. Canute Lavard was also the ancestor of the Valdemarian Kings and of their subsequent royal line. He was killed by his cousin Magnus, who saw him as a rival to the Danish throne and was canonized in 1170
Apr 30 Adjutor venerated as a saint by the Catholic Church. He was born in Normandy, France, where he was made a knight in the First Crusade. He is credited to be the patron saint of swimmers, boaters, and drowning victims, and the patron saint of Vernon, France. The stories given for his patronage of boaters vary. Some state that he was captured by Muslims in The Crusade, who tried to force him to abandon his faith, and when refusing, he escaped persecution by swimming. He swam back to France and entered the Abbey of Trion. There he became a recluse remaining up until his death of April 30th
Aug 21 Baldwin II of Jerusalem the second count of Edessa from 1100 to 1118, and the third king of Jerusalem from 1118 until his death.
Oct 13 Philip of France (1116–1131) the King of France from 1129, co-ruling with his father, Louis His mother was Louis VI's second wife, Adelaide of Maurienne.
Dec 4 Omar Khayyám a sufi mystic, Persian polymath, philosopher, mathematician, astronomer and poet. He also wrote treatises on mechanics, geography, mineralogy, music, and Islamic theology