Güyük Khan
The Ongud chief Ala Kush Tegin revealed the Naimans plan to attack Genghis Khan in 1205 and allied with the Mongols. When Genghis Khan invaded the Jin Dynasty in 1211, Ala Kush Tegin supported him. Genghis married his daughter Alakhai Bekhi to one of Ala Kush's sons. However, political opponents killed Ala Kush Tegin. Genghis put down the rebellion and took the family under his protection, with his daughter the de facto ruler. Alakhai Bekhi ruled the Ongud as regent for several underage princes until the reign of Güyük Khan (1246–48).