What is murong zhen?

Some articles on murong:

Murong Chao - Reign
... Murong Chao, however, immediately showed himself to be capricious and unwilling to listen to criticism ... of qualifications, and he disassociated himself from the officials Murong Zhong (慕容鍾) the Prince of Beidi and Duan Hong (段宏), whom Murong De had entrusted ... order to grab even more power, falsely accused Murong Zhong of treason ...