The cathedral, dedicated to the taking up (Assumption) of the Virgin Mary into heaven, is located in the Castello Aragonese, at the eastern tip of the island of Ischia. It is inaccessible except by a steep climb on foot. In 1848, the cathedral was served and administered by a Chapter, composed of three dignities (the Primicerius, the Archdeacon, and the Archpriest) and sixteen Canons. All the Canons were appointed by the cathedral's patron, the King of the Two Sicilies.