Juqu Mengxun

Juqu Mengxun was a Lushuihu Xiongnu chief who rebelled against Later Liang in 397 and set up the official Duan Ye as ruler of Northern Liang, then killed him in 401 and ruled himself. He made Guzang his capital in 412, destroyed Western Liang by 421, flooding Dunhuang, and became a major patron of Buddhism, sponsoring translations by Dharmakshema. His successors held the Hexi Corridor until the Northern Wei conquest of 439.