The fearsome Mongol leader conquered a mind-blowing 12 million square miles of land between 1206 and his death in 1227, more than anyone else in history.

But while his hordes pillaged their way through huge swathes of Eurasia (the combined continental landmass of Europe and Asia) – territory that is now worth trillions of dollars – Khan didn't actually hoard his spoils, choosing to redistribute the stolen loot and territory among his subjects instead.

Now discover who's in the race to become the world's first living trillionaire

Updated by Alice Cattley