Murong Chui
In 392, the Dingling chief Zhai Zhao, whose father Zhai Liao had years earlier rebelled against Later Yan and claimed the title "Heavenly Prince" ("Tian Wang") and established a Wei state, was sieged by Murong Chui in his capital Huatai (滑台, in modern Anyang, Henan), and sought aid from Murong Yong. Murong Yong, wanting to let Murong Chui and Zhai Zhao wear each other out—not realizing that Murong Chui, being far stronger than Zhai Zhao, could crush Zhai Zhao easily—refused to go to Zhai Zhao's aid, and Murong Chui conquered Wei lands easily. Zhai Zhao fled to Western Yan and was created a prince, but a year later, suspecting Zhai of treason, Murong Yong killed Zhai.