Murong Hui
Murong Jun was born in 319, while his father Murong Huang was still the heir apparent to his grandfather Murong Hui, the Jin-created Duke of Liaodong. In his youth, he was considered to be learned in both literary and military matters. Sometime after his father succeeded his grandfather in 333, he was made the heir apparent, a status that he retained after his father claimed the title Prince of Yan in 337 and after Jin retroactively acknowledged that title in 341.