1127

By place

Europe

• March 2 - Charles I, count of Flanders, is murdered; he leaves no children. King Louis VI appoints William Clito as new ruler. But the Flemish towns of Bruges, Ghent, Saint-Omer and Ypres recognize Thierry of Alsace as rival count.
• Summer - King Roger II of Sicily claims the Hauteville possessions in Italy as well the overlordship of Capua. However, a coalition of Norman noblemen in Apulia and Calabria resist against Sicilian rule. The same year, Roger regains control over Malta after a rebellion.
• Roger II establishes a pact with the maritime Republic of Savona to guarantee the security of the Mediterranean Sea, probably following an Almoravid raid against the Sicilian realm.
• December 18 - Conrad III is elected and crowned as anti-king of Germany at Nuremberg.

  England

• King Henry I arranges the marriage of his daughter Matilda to the 14-year-old Geoffrey of Anjou. This is done to ensure an alliance between England and Anjou, and to prevent Fulk allying with Louis VI.
• Henry I has the English nobles swear allegiance to Matilda as the rightful heir to the throne. She becomes Queen of England and Normandy when he dies.

  Levant

• Imad ad-Din Zengi, a Turkish military leader, becomes governor of Mosul. He seizes the cities of Nisibin, Sinjar and Harran in the Jazira Region.

  Asia

• January 9 - Jin–Song Wars: Jurchen forces sack the Chinese capital of Kaifeng of the Northern Song Dynasty during the Jingkang Incident. They capture Emperor Qin Zong, along with his father, Hui Zong, and members of the House of Zhao.
• June 12 - Qin Zong's younger brother, the 20-year-old Gao Zong, re-establishes the Song Dynasty in Lin'an and is proclaimed emperor.

  By topic

Religion

• The Kalyan minaret is completed in Bukhara.