Murong Xi
Sometime during Murong Sheng's reign, Murong Xi began an affair with Murong Sheng's mother Empress Dowager Ding. When Murong Sheng was assassinated in a coup in 401, the officials largely wanted a successor older than Murong Sheng's crown prince Murong Ding (慕容定), and most wanted to see Murong Sheng's younger brother Murong Yuán (慕容元) the Duke of Pingyuan. However, Empress Dowager Ding, because of her affair with Murong Xi, had other ideas, and she made it clear that she wanted Murong Xi to succeed her son. The officials were forced to go along with her wishes, and while Murong Xi formally offered the throne to Murong Yuan first, Murong Yuan did not dare to accept, and so Murong Xi accepted the throne. He used the title "Heavenly Prince" ("Tian Wang").