1087
Year 1087 was a common year starting on Friday of the Julian calendar.
Events
By place
Europe
- Summer - The Taifa of Valencia falls under the domination of El Cid. He stabilizes the region around Valencia, which has revolted against the Moorish puppet ruler Al-Qadir.
- Inge the Elder returns to Svealand and kills his brother-in-law Blot-Sweyn after a 3-year reign. Inge again proclaims himself king of Sweden.
England
- September 9 - William the Conqueror dies in Rouen after a fall from his horse. He is succeeded as king of England by his third son William II.
- A fire in London destroys much of the city, including St. Paul's Cathedral. Bishop Maurice starts the rebuilding of a new, much larger cathedral.
Africa
- Mahdia campaign: The navies of Genoa and Pisa take the capital of the Zirids, and occupy Mahdia for a year. Subsequently, both republics obtain trading privileges.
- Completion of Bab al-Futuh, Cairo
Japan
- January 3 - Emperor Shirakawa abdicates in favor of his 7-year-old son Horikawa after a 14-year reign. He exerts his personal power to set the cloistered rule system further in motion.
Middle East
- May: The marriage of Caliph al-Muqtadi and Mah-i Mulk is consummated. This marriage strengthens the political relation of Malik-Shah I and the Caliph.
By topic
Religion
- May 9 - The relics of Saint Nicholas, patron saint of seafarers, are stolen by Italian sailors from his church in Myra and transported to Bari in southern Italy.
- September 16 - Pope Victor III dies after a 1-year pontificate at Monte Cassino. He is buried in the abbey's chapter house.
Births
- September 13 - John II Komnenos, Byzantine emperor
- Ibn Quzman, Andalusian poet and writer
- Reginald III, count of Burgundy
- Theoderich van Are, German nobleman
Deaths
- June 9 - Otto I, prince of Olomouc
- June 27 - Henry I the Long, margrave of the Nordmark
- September 9 - William the Conqueror, king of England
- September 16 - Victor III, pope of the Catholic Church
- September 25 - Simon I, French nobleman
- November 12 - William I, French nobleman
- December 13 - Maria Dobroniega, duchess of Poland
- December 27 - Bertha of Savoy, Holy Roman Empress
- Abu Bakr ibn Umar, military leader of the Almoravids
- Abū Ishāq Ibrāhīm al-Zarqālī, Arab astrologer
- Arnold of Soissons, French bishop
- Asma bint Shihab, queen and co-regent of Yemen
- Blot-Sweyn, king of Svealand
- Eustace II, count of Boulogne
- Leo Diogenes, Byzantine co-emperor
- Solomon, king of Hungary
- Yaropolk Izyaslavich, prince of Turov and Volhyn