Genghis Khan

Genghis Khan was a Mongol military leader. In 1289, the First Doctor, Ian Chesterton, Barbara Wright and Susan Foreman met Genghis Khan's grandson, Kublai Khan. (DW: Marco Polo)

The Seventh Doctor claimed to have delivered Genghis Khan, saying that he was "a sweet baby." (NA: Tragedy Day)

When the Master claimed he wanted to rule people "for their own good", the Third Doctor wondered if he had heard Genghis Khan say the same thing. (DW: The Dæmons)

The Master lied to Chang Lee that the Doctor had been Genghis Khan. (DW: Doctor Who (1996))

The TARDIS once withstood an attack from the hordes of Genghis Khan, according to the Sixth and Ninth Doctors. (BFA: City of Spires, DW: Rose)