In June 1194, Boniface was appointed one of the leaders of Henry VI's expedition to Sicily. At Messina, amid the fighting between the Genoese and Pisan fleets, Vaqueiras protected his lord with his own shield – an act which helped the troubador win a knighthood from Boniface that year, after the campaign's successful conclusion: Henry's coronation in Palermo. In October 1197, the truce with Asti ended. Boniface made an alliance with Acqui in June 1198. There were numerous skirmishes and raids, including at Ricaldone and Caranzano, but by 1199 it was clear the war was lost, and Boniface entered into negotiations.