 Suspicious of the Yuwen brothers, Erzhu killed Yuwen Tai's older brother Yuwen Luosheng (宇文洛生), but Yuwen Tai pleaded his case with Erzhu and was spared.In 529, the Northern Wei prince Yuan Hao, under support from Liang Dynasty, attacked Emperor Xiaozhuang and seized the capital Luoyang, declaring himself emperor.Emperor Xiaozhuang fled north of the Yellow River, and Erzhu advanced south to aid him, sending Heba Yue, who was then serving under Erzhu, to lead his forward troops.