Medieval Corsica Count of Corsica at Biguglia, even seizing Bastia. Lomellino was unable to make headway against him and, by 1410, all Corsica, with the exception of Bonifacio and Calvi, was lost to Genoa, now once more independent of France. A feud between Vincentello and the Bishop of Mariana, however, led to the loss of his authority in the Terra di Comune and he was compelled to go to Spain in search of assistance. In his absence the Genoese reconquered the island. At this stage, the Western Schism was underway in Roman Catholic Europe. Corsica itself became divided as the suffragan sees
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