Events

• April 18/April 19 — Emperor Michael V of the Byzantine Empire attempts to remain sole Emperor by sending his adoptive mother and co-ruler Zoe of Byzantium to a monastery.
• April 19 — Michael V of the Byzantine Empire is deposed by popular revolt. Zoe, Empress of the Byzantine Empire with co-rulers since 1028, becomes reigning Empress with her sister Theodora.
• June 8 — Edward the Confessor becomes King of England.
• June 11 — Empress Zoe marries for the third time and elevates her husband to the throne as Constantine IX.
• George Maniaces, Byzantine general in Sicily, revolts against Constantine IX.
• Harald III of Norway, at this time leader of the Varangian Guard in the Byzantine Empire, returns to Norway, possibly because of his involvement in Maniaces' revolt.
• Magnus I of Norway becomes King of Denmark.
• The Normans in Italy move their capital to Melfi.
• Abad II succeeds his father to the throne of Sevilla.
• Incursions by the Western Xia and the threat of further Liao Dynasty military actions against the Song Dynasty force an increase in tribute payments to the Liao.
• The Almoravids, led by Abdullah Ibn Yasin, invade Morocco.
• Byzantine-Arab Wars: The Byzantines conquer Edessa, returning to Christian hands after 400 years of Islamic rule.

  Births

• date unknown — Pope Urban II (d. 1099)

Deaths