 The Alagona family was the most powerful in Catania at first and then eastern and eventually, under Blasco II, all of Sicily.In 1320, Frederick II of Sicily ceded the Castle of Aci, expropriated from Margherita, descendant of the Admiral Roger of Lauria, to Blasco.In 1326, Blasco defended the city of Palermo from the Angevins.