Famous People Who Died in 1252
- Mar 6 Saint Rose of Viterbo, Italian saint (b. 1235)
- Apr 6 Saint Peter of Verona, Italian inquisitor, assassinated at 45
- May 30 Ferdinand III the holy, King of Castile/Leon, dies
- Jun 29 King Abel of Denmark (b. 1218)
- Nov 26 Blanche of Castile, Queen of Louis VIII of France, regent to son Louis IX, dies at 64