Roland of Sicily llegitimate Son of King Frederick II of Sicily (1296–1361) Parents Sibilla Sormella Frederick III of Sicily Children John of Aragon, Baron of Avola Siblings Elisabeth of Sicily, Duchess of Bavaria William II of Athens Constance of Sicily, Queen of Cyprus John, marquess of Randazzo Manfred of Athens Alfonso Fadrique d'Aragona, Count of Malta Peter II of Sicily Margaret of Sicily Sanciolo d'Aragona Isabel de Aragón Partners Beatrice del Caretto