 In 531, the general Gao Huan rebelled against the Erzhus.Erzhu Tianguang was initially not particularly interested in aiding his Erzhu clan members, but felt compelled to, and he departed Chang'an to head east.While Erzhu Tianguang was away, Yuwen advised Heba to rise against the Erzhus, and Heba did, defeating Erzhu Tianguang's brother Erzhu Xianshou (爾朱顯壽), whom Yuwen subsequently captured, dividing control of the territory with Houmochen.