淝河
By 384, he was the governor of Pingyang Commandery (平陽, roughly modern Linfen, Shanxi). When he heard that his uncle Murong Chui and his older brother Murong Hong had rebelled against Former Qin in light of Fu Jiān's defeat at the Battle of Fei River in 383, he rebelled as well. He was soon defeated by the Former Qin general Dou Chong, and he joined his brother Murong Hong.