慕容暐
After Tuyühu Khan departed from the northeast, Murong Wei composed an "Older Brother’s Song," or "the Song of A Gan:" "A Gan" is Chinese transcription of "a ga" for "older brother" in the Xianbei language. The song lamented his sadness and longing for Tuyühu. Legends accounted that Murong Wei often sang it until he died and the song got spread into central and northwest China. The Murong Xianbei whom he had led successively founded the Former Yan (281-370), Western Yan (384-394), Later Yan (383-407), and Southern Yan (398-410). Their territories encompassed, at their height, the present Liaoning, Inner Mongolia, Shandong, Shanxi, Hebei, and Henan, and their capitals included Beijing and other cities. Through these establishments, they were immersed among the Chinese, whereas the Xianbei who followed Tuyühu Khan preserved their language and culture.