- May 23: Battle of Dandanaqan: Seljuk Turks defeat the Ghaznavids.
- June 17: Harthacanute lands at Sandwich and reclaims the English Throne.
- August 15: King Duncan I is killed in battle against his first cousin and rival Macbeth, who succeeds him as King of Scotland.
- A brewery is founded at Weihenstephan.
- February 22: Rashi, French rabbi and commentator (d. 1105)
- June 27: King Ladislaus I of Hungary
- Al-Bakri, Spanish Muslim geographer