- Jan 28 William II, Count of Holland and Zeeland (1234-56), and King of Germany (1248-56), dies in battle against the Frisians at 28
- Jun 13 Tankei, Japanese sculptor (b. 1173)
- Sep 1 Kujo Yoritsune, Japanese shogun (b. 1218)
- Oct 14 Kujō Yoritsugu, 5th shōgun of the Kamakura shogunate of Japan, dies at 16
Assassination
Drug Overdose
Gunshot Wound
Murder
Plane Crash
Suicide