1037

By place

Europe

• Spring - A revolt in northern Italy is started by Aribert, archbishop of Milan. King Henry III travels south of the Alps to quell it.
• February - At an Imperial Diet in Pavia Aribert is accused of fomenting a revolt against the Holy Roman Empire, Conrad orders his arrest.
• May - Conrad II with Pavian assistance lay siege to Milan at Porta Romana side, but the city holds out. In Rome, Pope Benedict IX deposes Aribert as archbishop.
• May 28 - Conrad II decrees the Constitutio de Feudis which protects the rights of the valvassores in Lombardia.
• Summer - A Byzantine expeditionary force under George Maniakes lands at Sicily and defeats the Zirids. Maniakes begins his campaign to reconquer the island.
• September 4 - Battle of Tamarón: Ferdinand I defeats and kills his brother-in-law Bermudo III. Ferdinand becomes the king of Castile and León.

  England

• King Harold I seizes the throne of England from his half-brother Harthacnut. His mother, Emma of Normandy flees to Bruges in Flanders.

  Asia

• The Chinese rime dictionary of the Jiyun is published during the Song Dynasty.