- (1350-1396) Son of Pedro IV of Aragon and Eleonora of Sicily, his third wife.
- His father proposed a marriage between Juan and Beatriz, daughter of Pedro I of Castile, with a view to firming a peace agreement and bring the war between Castile and Aragon to an end, but the King of Castile declined (1363). [Pedro, ch. 34: 61-69]
Joham