Peter IV of Aragon king of Aragon (1319–1387) Parents Teresa d'Entença Alfonso IV of Aragon Children Joanna of Aragon, Countess of Ampurias Alphonse d'Aragon Constance of Aragon, Queen of Sicily Martin of Aragon Isabella of Aragon Peter of Aragon Eleanor of Aragon, Queen of Castile John I of Aragon Siblings Fernando de Aragón Juan de Aragón James I, Count of Urgell Constance of Aragon, Queen of Majorca Partners Maria of Navarre Sibila of Fortia Eleanor of Portugal Eleanor of Sicily
