Charles returned to Lucera to personally direct its siege in April 1269. The Saracens and the Ghibellines who had escaped to the town resisted until starvation forced them to surrender in August 1269. Charles sent Philip and Guy of Montfort to Sicily to force the rebels there into submission, but they could only capture Augusta. Charles made William l'Estandart the commander of the army in Sicily in August 1269. L'Estandart captured Agrigento, forcing Frederick of Castile and Frederick Lancia to seek refuge in Tunis. After L'Estandart's subsequent victory at Sciacca, only Capece resisted, but he also had to surrender in early 1270.