Genghis Khan is the legendary Mongol leader featured in Altaïr's historical memories in Assassin's Creed Revelations.
Revelations includes missions set during Altaïr Ibn-La'Ahad's later life. These memories cover the aftermath of the Mongol invasions and the Assassins' effort to prevent the Mongol Empire from obtaining an ancient artifact. The historical storyline gives context to Altaïr's leadership and the Brotherhood's changing fortunes.
The game presents the Mongol threat through the series' fictional history rather than as a documentary account. Genghis Khan is discussed as a major historical figure whose conquests reshaped much of Asia in the early thirteenth century. The memories connect Altaïr's era to the wider world beyond the Levant.
Kublai Khan and Batu Khan were also important Mongol rulers, which makes them plausible confusions. However, the figure specifically named in Revelations' Altaïr-related historical context is Genghis Khan, the founder of the Mongol Empire.