In spring 549, Xiao Gang tried to negotiate peace with Hou, whose troops had by then tired. Hou initially agreed—with the terms being that he would be given the provinces west of the Yangtze River. However, Hou soon reneged on the peace agreement and resumed the siege of the palace. Soon, the palace fell, and Emperor Wu and Xiao Gang were effectively taken as hostages, although Hou continued to formally honor them as emperor and crown prince, despite his earlier agreement with Xiao Zhengde to have them killed. (Hou soon deposed Xiao Zhengde and killed him.) Xiao Gang's attendants all fled, except for Xu Li and Yin Buhai (). The provincial troops which had come to Jiankang's aid were disbanded, and Hou was now in control of the capital region.