Northern Liang 's duke Juqu Mengxun became so apprehensive that he offered to yield his territory and relocate his entire army into Later Qin proper , but later reneged on the promise .
Juqu Mengxun remained Later Qin vassal for years .
Northern Liang 's duke Juqu Mengxun became so apprehensive that he offered to yield his territory and relocate his entire army into Later Qin proper , but later reneged on the promise , although he remained Later Qin vassal for years .