In fall 400 , believing that he was being suspected by Tufa Lilugu , Qifu Gangui fled from Southern Liang and surrendered to Later Qin .
Qifu Gangui himself surrendered to Southern Liang 's prince Tufa Lilugu , thus temporarily ending Western Qin 's existence .
In fall 400 , believing that he was being suspected by prince   , Qifu Gangui fled from Southern Liang and surrendered to Later Qin .
Qifu Gangui himself surrendered to Southern Liang 's prince Tufa Lilugu , thus temporarily ending Western Qin 's existence .