慕容德
In 398, Murong De, displeased at how Murong Chui's son and successor Murong Bao had, through incompetence, lost most of the Later Yan territory, declared himself the Prince of Yan and established the separate Southern Yan state. In 400, he declared himself emperor and created Duan Jifei empress. After Murong De died in 405 and was succeeded by his nephew Murong Chao, she became empress dowager, but in 406 became embroiled in a plot with Murong Zhong (慕容鍾) the Prince of Beidi and the generals Murong Fa (慕容法) and Duan Hong (段宏) to overthrow Murong Chao, but after one of the coconspirators, Feng Song (封嵩) was arrested, she became fearful and revealed the entire plot to Murong Chao, who then defeated the coup attempt.