In the face of the Aragonese landing, Charles was compelled to withdraw from the island, but the Aragonese moved swiftly and destroyed part of his army and most of his baggage. Peter took control of the whole island and sent troops to Calabria, but they could not prevent Charles of Salerno from leading an army of 600 French knights to join his father at Reggio Calabria. Further French troops arrived under the command of Charles' nephews, Robert II of Artois and Peter of Alençon, in November. In the same month, the Pope excommunicated Peter.