Alphonse d'Aragon (b. 1376) Parents Peter IV of Aragon Sibila of Fortia Children Siblings Peter of Aragon Joanna of Aragon, Countess of Ampurias Eleanor of Aragon, Queen of Castile Constance of Aragon, Queen of Sicily Martin of Aragon Isabella of Aragon John I of Aragon Partners Yolante de Arenos