Als militair leider van de Lombardische steden Pavia, Vercelli, Alessandria, Tortona, Genua, Turijn, Asti, Alba, Novara, Brescia, Cremona en Lodi was Willem eveneens het verkozen hoofd van de anti-Angevijnse coalitie.
Having become the military leader of various Lombard cities, including Pavia, Vercelli, Alessandria, Tortona, Genoa, Turin, Asti, Alba, Novara, Brescia, Cremona, and Lodi, he was also elected head of the anti-Angevin coalition.WikiMatrix WikiMatrix