Western Qin
In spring 431, with his own territories nearly all taken by Northern Wei, Helian Ding, after defeating the troops that Yang sent to aid Western Qin, had his uncle Helian Weifa (赫連韋伐) put Nan'an under siege. Even Qifu Mumo's closest associates surrendered. Qifu Mumo, with no way to go, exited the city and surrendered to Helian Weifa. Helian Weifa delivered Qifu Mumo and Juqu Xingguo to Shanggui, where Helian Ding was at the time. Jiao Yi and his son Jiao Kai (焦楷) tried to put together a resistance to try to revive Western Qin, but Jiao Yi then died of illness, and Jiao Kai fled to Northern Liang. In summer 431, Helian Ding executed Qifu Mumo and 500 members of his clan. Western Qin was at its end.