sentences:  The Black Death arrived in Genoa in October and when it hit Corsica in the next months it decimated it, killing off perhaps two thirds of the population.The feudal baronage of the south and the hereditary caporali of the north alike resisted the authority of the Genoese governors and Peter IV of Aragon took the opportunity to reassert his claims.In 1372, Arrigo della Rocca with Aragonese troops conquered the island, but the barons of Cape Corso appealed for aid to Genoa.