sentences:  By 1020 he had succeeded in driving the count of Cinarca out of the island and enforcing peace, or at least reduced violence, on the southern barons.He allied with the communes and was able to hand Corsica on to his son, but his legacy was not one of unity and central government.Towards the end of the eleventh century, the Papacy laid claim to Corsica, saying it had been donated to the Church by Charlemagne.