赫連昌
In spring 427, Helian Chang sent his brother Helian Ding the Duke of Pingyuan south, hoping to recapture Chang'an. Helian Ding became stalemated with Daxi Jin at Chang'an. Meanwhile, knowing that Helian Ding was occupied, Northern Wei's Emperor Taiwu made another attack on Tongwan, and this time, Helian Chang initially wanted to recall Helian Ding from Chang'an; instead, Helian Ding advised him to defend Tongwan securely to wear out the Northern Wei forces, and then he, after capture Chang'an, could then return and attack Northern Wei forces on two sides. Helian Chang agreed and did not engage Northern Wei forces.