1311

Year 1311 was a common year starting on Friday (link will display the full calendar) of the Julian calendar.

Events of 1311

* March 15 - Battle of Halmyros: The Catalan Company defeats Walter V of Brienne to take control of the Duchy of Athens.

Undated

* A committee of 21 English barons draw up a series of ordinances, which substitute ordainers for the King (Edward II) as the effective government of the country.
* Bolingbroke Castle passes to the House of Lancaster.

Births

* June 24 - Philippa of Hainault, queen of Edward III of England (d. 1369)
* August 13 - King Alfonso XI of Castile (d. 1350)
* Peter I, Duke of Bourbon (d. 1356)
* Margaret II, Countess of Hainaut (d. 1356)
* Joan II of Navarre, daughter of King Louis X of France (d. 1349)
* July 1 - Liu Ji, Chinese military strategist, officer, statesman and poet (d. 1375)
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Deaths

* March 15 - Walter V of Brienne, Duke of Athens
* Antony Bek, bishop of Durham
* David VIII of Georgia (b. 1273)
* James II of Majorca (b. 1243)
* Bernard Saisset, Occitan bishop of Pamiers (b. 1232)
* Arnold of Villanova, Spanish alchemist and physician (b. 1235)
* Emperor Wuzong of Yuan China
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