أوقطاي خان
The Mongols under Genghis Khan, Ögedei Khan, Möngke Khan, and Kublai Khan conquered most of Eurasia. They took over China, Persia, Turkestan, and Russia. After Kublai Khan took power and created the Yuan dynasty, the divisions of the empire ceased to cooperate with each other, and the Mongol Empire was only nominally united.