Castel dell'Ovo
Constance was taken to Palermo, supervised by Queen Sibylla; Tancred had her eat with Sibylla and sleep in Sibylla's bedroom. Sibylla, who had once quarrelled with Constance, after seeing that the populace of Palermo was showing sympathy to Constance, suggested that Tancred put Constance to death. Tancred disagreed, worrying that this would harm his popularity. So under the suggestion of Tancred, Sibylla went on a discussion with Matthew of Ajello, who had been promoted to chancellor, where to imprison Constance. Matthew wrote a letter to Tancred in her presence, suggesting him to lock Constance in the Castel dell'Ovo in Naples in the custody of nobleman Aligerno Cottone so as to be better-guarded since the castle was surrounded by water, meanwhile had her secluded from Sicilian people. Tancred accepted their suggestion. In addition Matthew wrote to Aligerno ordering him to "ut imperatricem in Castro Salvatoris ad mare benè custodiat" (guard the empress in Castle of the Savior (i. e. Castel dell'Ovo) in the sea properly).