Alfonso III of Aragon King of Aragon (1265–1291) Parents Constance of Sicily Peter III of Aragon Children Siblings Pietro d'Aragona Jaume Pere d'Aragó i Nicolau James II of Aragon Elizabeth of Aragon Frederick III of Sicily Yolande of Aragon, Duchess of Calabria Teresa de Aragón Sanç d'Aragó Partners Eleanor of England, Countess of Bar