The Norman Conquest of England in 1066, the East-West Schism of 1054, and the launch of the First Crusade.
Notable 11th Century Milestones
- 1006 May 01: Supernova observed by Chinese and Egyptians in constellation Lupus.
- 1048 May 01: Bishop Bernold flees St Pieterskerk for Utrecht Netherlands.
- 1032 Feb 02: In this year, Burgundy's Rudolph III dies childless February 2 The Holy Roman Emperor Conrad II claims Rudolph's realm under terms of a 1027 treaty of succession and unites it with the empire.
- 1032 Feb 02: Koenraad II succeeds Rudolf III as king of Bourgundy.
- 1100 Aug 02: England's William II Rufus dies at age 44 after being struck by an arrow while hunting in the New Forest Sir Walter Tyrel is accused of having shot the arrow but flees the country to avoid a trial and then protests his innocence (Ralph of Aix is also accused).