- "A dark tide rises to the east – an army of such size and power that all the land is made quick to worry. Their leader is a man named Temujin, who has adopted the title Genghis Khan. He sweeps across the lands, conquering and subsuming all who stand in his way."
- ―Altaïr Ibn-La'Ahad's Codex, page 29.[src]
Temujin (c. 1162 – 1227), also known under the title Genghis Khan, was the founder and first emperor of the Mongol Empire, which he ruled from 1206 until his death. Utilizing a Sword of Eden, Genghis Khan established what would later become the largest contiguous empire in history.
By the year 1217, the Mentor of the Levantine Brotherhood of Assassins, Altaïr Ibn-La'Ahad, correctly suspected that Genghis Khan's rise to power was due in part to a Sword of Eden. Thus, Altaïr, his wife Maria, and his son Darim traveled to Mongolia intending to assassinate Khan and retrieve the Piece of Eden. In 1227, they located Genghis Khan in Xingqing around the time his forces were besieging the city; the Mongolian Assassin Qulan Gal shot Genghis Khan's horse with an arrow, dismounting the Mongol Emperor and providing Darim the chance to kill him with a crossbow bolt.
- Rebecca Crane estimates that Genghis Khan likely has sixteen million living descendants.
- Emperor Genghis Khan was known often for his cruelty, his sadistic sense of humor and his reputation for terrorizing and bullying his way into whatever he wanted and got as well as his reputation for carrying a psychopathic, cruel, perverted and sadistic pleasure in terrorizing and bullying anyone who opposed him, looking at and listening to anyone who opposed him as they trembled and begged him for mercy combined with such described pleasure taken by him whilst in looking at and listening to the sorrow-and-grief-filled cries of the loved and cared-about ones of anyone who opposed him of all types and taking some of the women amongst them for his own pleasures. Even currently both in the franchise possibly speaking, and in real life, he is regarded by many as one of the most evil of men and women in history.