In June Louis rehabilitated the Ventimiglia family, old rivals of the Chiaramonte, and restored them to the office of chamberlain. In November he personally led the force that reconquered Piazza Armerina. He followed up his success with further actions in the westernmost Sicilian province, the Val di Mazara, occupying Cammarata and Trapani. During late December and early January he was in Calatafimi. Only the town of Castronovo continued to resist in the province. On 7 January 1355 Louis was in Giuliana, but he returned to Catania in February. From there he and the Alagona launched an assault against Lentini on 13 May, but the siege of the town had to be lifted in mid-June. On 10 July an epidemic of bubonic plague broke out at Catania and the king left for Messina.