Li Gao
Very little is known about Li Xun's life, including whether he was the son of his brother Li Xin's mother Princess Dowager Yin. Under his father Li Gao (Prince Wuzhao) and/or Li Xin, Li Xun successively served as the governor of Jiuquan (酒泉, roughly modern Jiuquan, Gansu) and Dunhuang Commanderies. His rule of Dunhuang was said to be benevolent and favored by the people. In 420, while trying to attack Northern Liang, Li Xin fell into a trap set by Juqu Mengxun and was killed in battle. Juqu Mengxun then quickly reached the Western Liang capital Jiuquan, and Li Xin's other brothers abandoned Jiuquan and fled to Dunhuang. Once they reached Dunhuang, they and Li Xun, then the governor of Dunhuang, abandoned Dunhuang and fled to the hills north of Dunhuang.