- Jan 17 King Alfonso III of Aragon invades Minorca.
- Jan 21 The treaty of San Agayz is signed. Minorca is conquered by King Alfons III of Aragon.
- Dec 14 During St. Lucia's Flood in Northwest Netherlands the Zuiderzee seawall collapses with loss of over 50,000 lives. Fifth largest recorded flood in history
- Kublai Khan
Mongolian Emperor and Founder of the Yuan Dynasty
- Apr 3 Honorius IV, [Giacomo Savelli], Italian Pope (1285-87), dies