- (? - 1383) Nephew of Pope Gregory XI.
- Son of Aymar de Murat de Cros and of Marie de Montclar. Brother of Pierre de Murat de Cros, later Archbishop of Arles.
- Cardinal-bishop of Palestrina (1376).
- After Pope Gregory XI died, Jean de Cors supported Pope Urban VI, but later on he joined the Antipope Clement VII and became his legate in France.
bispo Prenestino