1311

Events

• Bolingbroke Castle passes to the House of Lancaster.
• March 15 - the Catalan Company defeats Walter V of Brienne to take control of the Duchy of Athens.
• A committee of twenty-one English barons draw up a series of ordinances, which substituted ordainers for the King (Edward II) as the effective government of the country.

Births

• 24 June - Philippa of Hainault (wife of King Edward III of England)
• Margaret of Holland (d. 1356)

Deaths

• March 15 - Walter V of Brienne, Duke of Athens