sentences:  On 10 November 1274, at the Battle of Roccavione, William and the Ghibellines definitively defeated Charles I and routed his forces.He advanced far, taking Trino Vercellese and Turin, which offended the House of Savoy, which considered itself the rightful possessor of the city on the Po.Around 1278, the commune of Vercelli recognized William as lord, and Alessandria named him captain.