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
Corsica soon became part of the Kingdom of the Lombards. This made it a dependency of the March of Tuscany, which used it as an outpost against the Saracens. Pepin the Short, king of the Franks and Charlemagne's father, expelled the Lombards and nominally granted Corsica to Pope Stephen II. In the first quarter of the 11th century, Pisa and Genoa together freed the island from the threat of Arab invasion. After that, the island came under the influence of the republic of Pisa. To this period belong the many polychrome churches which adorn the island, and Corsica also experienced a