After abortive attempts to enlist England as the champion of the Papacy against Manfred, Urban IV settled on the later Charles I of Naples as his candidate for the Sicilian throne. Charles invaded Italy and defeated and killed Manfred in 1266 at the Battle of Benevento, becoming King of Sicily. In 1268 Conradin, who had meanwhile come of age, invaded Italy to press his claim to the throne, but he was defeated at the Battle of Tagliacozzo and executed afterwards. Charles was now undisputed master of the Kingdom of Sicily.