Al Mualim's character is roughly based on Rashid ad-Din Sinan, who was the leader of the Syrian branch of the Hashshashin in 1191 and was nicknamed "The Old Man of the Mountain".
Karakteri i Al Mualim është bazuar pothuajse në Rashid ad-Din Sinani, i cili ishte udhëheqës i degës sirian e Hashshashin në 1191 dhe u mbiquajt "Njeriu i vjetër i malit".