Zhang Zuo's rule, according to traditional accounts, was one filled with debauchery, cruelty, and extravagance. He was said to not only had an affair with Princess Dowager Ma, but committed incest with all of Zhang Chonghua's daughters. He became apprehensive of his general Zhang Guan (), so he sent Zhang Guan on an expedition, but sent another army to ambush him. The news leaked, however, and Zhang Guan turned his army against the capital Guzang (姑臧, in modern Wuwei, Gansu). He declared that Zhang Zuo should be deposed and Zhang Yaoling should be restored. He was soon joined by another major general, Song Hun (). In response, Zhang Zuo had his young nephew put to death by beating.