1037

Year 1037 (MXXXVII) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar.

Europe

 * Spring – A revolt in northern Italy is started by Archbishop Aribert of Milan. King Henry III (eldest son of Emperor Conrad II) travels south of the Alps to quell it.
 * February – At an Imperial Diet in Pavia (assembled by Conrad II), Aribert is accused of fomenting a revolt against the Holy Roman Empire, Conrad orders his arrest.
 * May – Conrad II, with Pavian assistance, lays siege to Milan at the 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 (knights and burghers of the cities) in Lombardia (modern Italy).
 * 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 (modern Spain).
 * November 15 – Battle of Bar-le-Duc: Odo II, Count of Blois and Champagne, while invading the Duchy of Lorraine dies in battle with forces loyal to Gothelo I.

England

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

Asia

 * The Chinese rime dictionary of the Jiyun is published during the Song Dynasty.
 * The Great Seljuk Empire is established by Tugrul Bey.

Births

 * January 8 – Su Dongpo, Chinese calligrapher (d. 1101)
 * Beatrice I, German abbess of Quedlinburg (d. 1061)
 * Hawise, duchess of Brittany (approximate date)

Deaths

 * September 4 – Bermudo III (or Vermudo), king of León
 * November 15 – Odo II, French nobleman (b. 983)
 * Abu'l-Hasan Mihyar al-Daylami, Persian poet
 * Abu Mansur al-Baghdadi, Persian Shafi'i scholar
 * Baba Kuhi of Shiraz, Persian Sufi mystic (b. 948)
 * Avicenna, Persian physician and polymath (b. 980)
 * Boleslaus III (the Red), duke of Bohemia
 * Ding Wei, grand chancellor of the Song Dynasty
 * Farrukhi Sistani, Persian poet (or 1038)
 * John of Debar, Bulgarian clergyman and bishop
 * Muhammad al-Baghdadi, Persian mathematician
 * Muirgeas ua Cú Ceanainn, king of Uí Díarmata
 * Robert II, French prelate and archbishop
 * Siegfried II, German nobleman (b. 956)
 * William III (Taillefer), French nobleman