Al Mualim, sometimes known as The Old Man of the Mountain or by his historical name Rashid ad-Din Sinan, is one of the two main antagonists of the 2007 videogame Assassin's Creed, along with Robert de Sable. However, Altaïr only finds out about him being a Templar at the very end of the game. He was the Mentor of the Assassins until he was defeated by Altaïr, who became Mentor in his place.