The separation of Tuyuhun from the Murong Xianbei occurred during the Western Jin Dynasty (266-316), which succeeded the Cao Wei (220-265) in northern China.
Legends accounted the separation as caused by a fight between Tuyuhun's horses and those of his younger brother, Murong Hui.
The faction that supported Murong Hui for the Khanate position aimed at ruling over China, whereas Tuyuhu intended to preserve the Xianbei culture and lifestyle.
After settling down in the northwest, they established the powerful Tuyuhun Kingdom named to his honor as the first Khan who led them there, by subjugating the native peoples who were summarily referred to as the “Qiang” and included more than 100 different and loosely coordinated tribes that did not submitted to each other or any authorities.
Legends accounted that Murong Hui often sang it until he died and the song got spread into central and northwest China.