Corsica and the Pope: finally, in 1450 Genoa ceded the administration of the island to its main bank, the Bank of Saint George, which brought peace. In the 16th century, the island entered into the fight between Spain and France for the supremacy in Italy. In 1553, a Franco-Ottoman fleet occupied Corsica, but the reaction of Spain and Genoa, led by Andrea Doria, reestablished the Genoese supremacy on the island, confirmed by the Peace of Cateau-Cambresis. The unlucky protagonist of this episode was Sampiero di Bastelica, who would later come to be considered a hero of the island. Their power reinstated,
Medieval Corsica Nonetheless their assaults continued. In 828, the defense of Corsica was entrusted to Boniface II of Tuscany, who conducted a successful expedition against the Muslims and built the fortress that later was to bear his name (Bonifacio) in the south. For the next century, Corsica was a part of the March of Tuscany. Boniface' son Adalbert I continued to push back against the Muslim invaders after 846; but, in spite of all efforts, they seem to have remained in possession of part of the island until about 930. The island was hit by a Fatimid raid in 935. During his