The Odum of Ala Igbo
Hail Biafra!
Compared to the Mongols not that much. There's a reason why 16 million people today are related to him. Plus he killed over 40 million people ( 10% of the world's population at the time ).
Look at Mongolia today. Look at Britain today. There are hundreds of millions of people around the world with British ancestry. Even the most hated people of the British Isles (and the virtual peons of the English) the Irish, have been scattered around the world and number over 80 million. They won.