Noin-Ula burial site
Many immigrants lived in the Xiongnu pasturelands, but at first they did not mix with the Xiongnu. To be a Xiongnu, one had to be a member of a clan, born of Xiongnu parents. The newcomers were well off, but were outsiders, and could marry only among themselves, not the Xiongnu. Only later did they intermix, increase in numbers, even created a state that existed from 318 to 350 AD.
Xiongnu
The Juqu were a branch of the Xiongnu. Their leader Juqu Mengxun took over the Northern Liang by overthrowing the former puppet ruler Duan Ye. By 439, the Juqu power was destroyed by the Northern Wei. Their remnants were then settled in the city of Gaochang before being destroyed by the Rouran.