 Emperor Fei's wife Empress Yuwen was Yuwen Tai's daughter, and while it was recorded that he did not have any concubines because he loved her greatly, it could have also been that he feared Yuwen's power and therefore did not have any concubines.In summer 551, the Tiele were launching an attack on Rouran, when Tujue's chieftain Ashina Tumen intercepted the Tiele and captured a large number of the Tiele people.Ashina Tumen, after his victory, sought a marriage with a daughter of Yujiulü Anagui.