 By winter 549, one of the Liang princes, Xiao Cha the Prince of Yueyang (Emperor Wu's grandson), fearing an attack from his uncle Xiao Yi the Prince of Xiangdong (Emperor Wu's son), surrendered his domain around the city Xiangyang (襄陽, in modern Xiangfan, Hubei) to Western Wei, requesting protection.Yuwen sent the general Yang Zhong (楊忠) to aid Xiao Cha, and after Yang defeated and captured Xiao Yi's general Liu Zhongli (柳仲禮) in spring 550, Western Wei made peace with Xiao Yi, setting the borders in such a way to put Xiao Cha under Western Wei's protection.Yuwen created Xiao Cha the title "Prince of Liang," preparing to have him claim the Liang throne as Western Wei's vassal.