- May 21 French crown prince Louis enters England, having been invited by barons at war with King John.
- Oct 12 King John of England loses his crown jewels in The Wash, probably near Fosdyke, perhaps near Sutton Bridge
- Oct 19 King John of England dies at Newark-on-Trent and is succeeded by his nine-year-old son Henry
- Dec 22 Pope Honorius III delegates degree "Religiosam vitam eligentibus"
- Genghis Khan
Great Khan of the Mongol Empire