1068

By place

Byzantine Empire

• January 1 - Empress Eudokia Makrembolitissa, wife of the late Emperor Constantine X, marries General Romanos Diogenes – who is proclaimed co-emperor as Romanos IV of the Byzantine Empire.
• Autumn - Romanos IV begins a campaign against the Seljuk Turks, leading a Byzantine expeditionary force. He is successful in recapturing the fortress city of Hieropolis near Aleppo in northern Syria.
• Winter - Romanos IV leaves a portion of his army as a rear guard at Melitene. The Byzantine garrison fails to check an Seljuk raid that manages to sack Amorium. Romanos winters near Aleppo before returning to Constantinople.

  Europe

• Norman conquest of southern Italy: Norman forces under Robert Guiscard lay siege to the Byzantine city of Bari.
• Battle of the Alta River: The Cumans defeat the Kievan Rus' forces of Grand Prince Iziaslav I, and his brothers Sviatoslav II and Vsevolod I.
• Kiev Uprising: The city of Kiev rebels against Iziaslav I, in the aftermath of the Kievan Rus' defeat against the Cumans.

  England

• Siege of Exeter: Norman forces under King William I take the city of Exeter after an siege of 18-days.
• William I begins a campaign in the East Midlands to put down the rebellions at Nottingham, Stafford, Lincoln and York.
• Edgar the Ætheling takes refuge with King Malcolm III of Scotland along with Edgar's sister Margaret, who marries King Malcolm.
• May 11 - William I brings his wife Matilda of Flanders to England. She is crowned queen in Westminster Abbey.

  Africa

• September - Zaynab an-Nafzawiyyah marries Abu Bakr ibn Umar, leader of the Almoravids, and becomes his queen an co-regent.

  Asia

• Spring - Emperor Yi Zong of the Western Xia dies after a 19-year reign. He is succeeded by his 7-year-old son Hui Zong, who assumes the throne.
• May 22 - Emperor Go-Reizei dies after a 23-year reign, leaving no direct heirs to the throne. He is succeeded by his brother Go-Sanjō as the 71st emperor of Japan.

  By topic

Geology

• March 18 - An earthquake affects the Near East, with a maximum Mercalli intensity of IX. The shock has a magnitude greater than 7, and leaves about 20,000 people dead.