When Frederick III was elected King of Trinacria (Sicily), Roger received as reward for his victories the fief of Aci and the annexed castle, stripped from the bishops of Catania. However, the relationship between the admiral and the young King soon soured; when the former passed to the Angevins, Aci was besieged and captured by Frederick, and Roger took refuge at his summer residence in Castiglione di Sicilia. Again besieged and defeated, he was arrested and brought to Palermo. However, he managed to escape and left Sicily, while all his fiefs were confiscated. Roger then entered the service of Edward I of England to fight against the French. But, in spite of his promises, he returned to Italy, where, on 4 July 1299, he defeated the Sicilians near Sicily at the Battle of Cape Orlando, capturing eighteen enemy galleys.