When the leader of the Levantine Assassins, Altaïr Ibn-La’Ahad, his wife Maria and their son Darim traveled to the Mongol Empire to stop the Mongol leader Genghis Khan, the Mongolian Assassin Qulan Gal assisted the family. After making several plans, Qulan Gal and Altaïr infiltrated the Mongol camp in Xingging, near Xia province. His son, Darim and Qulan ended up assassinating Genghis successfully.
3/? of my assassin branch collection