Although the ruling Tayichiud clan was destroyed by Genghis, their descendants, who had surrendered, achieved fame in parts of the Mongol Empire. Jebe (born Jurgaadai), who had struck the final blow to the Jurchens during the Mongol conquest of the Jin dynasty in 1219 and defeated the Kypchaks and their European allies at the battle of Kalka in 1223, was from Besud clan of Tayichiud. Baiju, the commander of the Tammachi in Persia, was also from the Besud clan of the Tayichiud. Chilaun, one of Genghis Khan's four close companions, was from the Suldus, a sub-clan of the Tayichiud. His descendant Chupan reached the peak of his career during the reign of Ilkhan Abu Said, and was given the title of chief commander of all Mongol Khanates by the court of the Yuan Dynasty in 1327. In the Chagatai Khanate, another aristocrat, Buyan Suldus, overthrew the Qara'unas in Transoxiana in 1359, but was executed by Chagatai Khan Tughluq Temur in 1362.