Events

• April 16 ? The last Byzantine-controlled city in southern Italy, Bari, is captured by Robert Guiscard.
• August 26 ? Battle of Manzikert: The Byzantine Empire loses to a Turkish army led by Alp Arslan. Byzantine civil war results in Turkish invasions.
• Construction of Richmond Castle in North Yorkshire, England begins.
• A succession struggle erupts in France between Richilda, widow of Baldwin VI, and Robert the Frisian, son of Baldwin V. Robert defeats Richilda and is appointed count by King Philip.

Births

• October 22 ? William IX, Duke of Aquitaine, poet (d. 1126)

Deaths

• February 22 ? Arnulf III, Count of Flanders (in battle)

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