Helian Chang
However, Helian Chang then received misinformation that Northern Wei forces were out of food supplies and vulnerable. Helian Chang led his army out of the city and attacked the Northern Wei forces. Initially, he was winning the battle, and he almost captured the Northern Wei emperor. However, Northern Wei forces then fought back and defeated Xia forces, killing Helian Chang's brother Helian Man (赫連滿) and nephew Helian Mengxun (赫連蒙遜). Helian Chang was so panicked by the loss that he did not retreat back to Tongwan, but fled to Shanggui (上邽, in modern Tianshui, Gansu). Northern Wei forces entered Tongwan and captured the nobles and imperial clan members, including Helian Bobo's and Helian Chang's empresses, as well as Helian Chang's sisters. The Northern Wei emperor took three of Helian Chang's sisters as concubines. Upon hearing the news of Tongwayn's fall, Helian Ding abandoned his campaign against Daxi and joined Helian Chang at Shanggui. Daxi gave chase, intending to destroy Xia.