Great Khan

The Great Khan was the ruler of the Mongol Empire. The first Great Khan was Genghis Khan, with others including Ogedei Khan, Mongke Khan and Kublai Khan. (PROSE: Bunker Soldiers) Indeed, Kublai Khan was the Great Khan, an emperor of the Mongols who ruled over all of Asia in the second half of the 13th century, when he met the First Doctor. (TV: Marco Polo, PROSE: Marco Polo)

Another Great Khan of a feline-like species invaded a large part of a planet where the Steel Stump of Strength and Power, part of the Wicket Gate, resided. (PROSE: Doctor Who and the Krikkitmen)