Manfred of Athens 14th century duke of Athens (1306–1317) Parents Eleanor of Anjou, Queen of Sicily Frederick III of Sicily Children Siblings Elisabeth of Sicily, Duchess of Bavaria William II of Athens Roland of Sicily Sanciolo d'Aragona Margaret of Sicily Peter II of Sicily Alfonso Fadrique d'Aragona, Count of Malta Constance of Sicily, Queen of Cyprus John, marquess of Randazzo Isabel de Aragón