모용수
Murong Chui, while not willing to resort to murder due to Fu Jian's earlier kindness to him, did decide, however, to try to reestablish Yan. Under the pretense of wanting to calm the people of the eastern empire, he persuaded Fu Jian to allow him to lead an army northeast, despite opposition by Quan Yi. As Murong Chui arrived at Yecheng, he and Fu Pi suspected each other but each ruled out suggestions by their respective subordinates to ambush the other. As, at this time, the Dingling chief Zhai Bin () rebelled against Former Qin, with assistance with Murong Chui's nephew Murong Feng (), and attacked Luoyang, and Fu Pi sent Murong Chui south to relieve Luoyang, with the Di general Fu Feilong () as his assistant. On the way to Luoyang, Murong Chui ambushed Fu Feilong and slaughtered his Di soldiers, but still wrote an explanation to Fu Jian. In spring 384, however, Murong Chui would join Zhai and claim the title Prince of Yan, establishing Later Yan. He soon captured many cities in the eastern empire, although Yecheng and Luoyang held out against him.