Battle of Las Navas de Tolosa
He began his career as a canon priest in Barcelona Cathedral during the episcopate of his uncle Berenguer de Palou I. Shortly after being elected bishop in 1212, he marched with Peter II of Aragon on the latter’s crusade against the Almohads in the Battle of Las Navas de Tolosa. Later Palou served as royal councilor and chancellor of the Crown of Catalonia-Aragon.