Muqali: the former slave of the Jurchens, chosen as a general the leader of the the Eastern Mingghans by Genghis Khan!

Muqali (1170-1223) was selected as King after Genghis Khan declared war with the Khwarezmid Empire. Genghis took a majority of the army with him there, but sent Muqali to Northern China, where he and his select troops subdued them. He also served under Genghis Khan at the Battle of the Badger Mouth. Muqali died shortly after conquest after falling ill in 1223, laying claim that, like Genghis, he had never been defeated.