Explanation: Exactly what it sounds like. Khutulun, a descendant of Genghis Khan (the great-granddaughter of his heir, Ogedei Khan), was famed for her beauty and her athletic prowess. She swore not to marry any man unless he could defeat her in a wrestling match. No man ever did (though I believe she eventually married). Any man who challenged her and lost would forfeit 100 horses to her. She earned a herd of some 10,000 horses this way - a considerable amount of wealth even for a Mongol princess!
She was also a skilled warrior, and favored by her father to become the next Khan, but he was eventually dissuaded from this by political maneuvering. Khutulun herself would become a prominent military commander under one of her brothers, who became Khan instead.