While he was in Dunhuang, that city was subdued in 420 and again in 421 by the Northern Liang king, Juqu Mengxun.
•
He had been residing in Dunhuang for several years when that city was captured in 420 by Juqu Mengxun, the king of Northern Liang.
When he was subsequently defeated and killed in 420 by the Northern Liang prince Juqu Mengxun, the Western Liang capital Jiuquan (酒泉, in modern Jiuquan, Gansu) fell to Northern Liang, and Princess Dowager Yin and Li Jingshou were captured.