Li Xun.

About Li Xun

Li Xun, courtesy name Shiru (士如), was the final ruler of China's Western Liang dynasty during the Sixteen Kingdoms period. Li Xun tried to hold out against the conquering Northern Liang armies under its prince Juqu Mengxun, after his brother Li Xin's death in 420. He was only able to hold the city of Dunhuang for several months, before Juqu Mengxun successfully sieged the city, and Li Xun committed suicide, which marked the collapse of the Western Liang dynasty.