On his deathbed young Henry ordered Marshal to go on Crusade on his behalf. With Henry II's permission, William went on Crusade for two years and his superior fighting skill was recognized by the Knights Templar. When he returned, Henry II at once took him into high favor, and made him a member of his household. Marshal then fought for Henry II against the French King Louis VII of France and in skirmishs against Henry's other sons now in rebellion.