Qulan Gal

Qulan Gal was a male assassin living during Ghengis Khan's invasions. It is highly possible that he is a son or grandson of Altaïr Ibn-La'Ahad, seeing as Altaïr left for Mongolia to train his sons to kill Ghengis Khan, a Templar. Finally, he was the one who killed Ghengis Khan, who he killed with an arrow.