In 1295, during the Sicilian Vespers, the Parliament which declared deposed James II of Aragon as King of Sicily, replacing him with Frederick III, was held here. The following year it was captured by Robert of Anjou but was later again in Aragonese hands. King Frederick III resided in the castle, as well as his successors Peter II, Louis, Frederick IV and Maria. Here the latter was kidnapped by Guglielmo Raimondo III Moncada to avoid her marriage with Gian Galeazzo Visconti (1392). King Martin I held also his court in the castle.