By the mid-420s, the emperor of the neighbouring state of Wei, Tuoba Tao, had heard of Dharmakṣema's magical and prophetic abilities, and, as Juqu's superior, demanded that Dharmakṣema be handed over to him.
Juqu Anzhou (沮渠安周) (died 460) is viewed by some historians as a prince of the Xiongnu states Northern Liang, as after the state's territory was largely seized by Northern Wei in 439, and his older brother Juqu Mujian (Prince Ai) was captured by Northern Wei, Juqu Anzhou's brother Juqu Wuhui tried to hold out against Northern Wei, initially on Northern Liang's old territory, and later, after that attempt failed, at Gaochang.
Juqu Wuhui (沮渠無諱) (died 444) is viewed by some historians as a prince of the Xiongnu states Northern Liang, as after the state's territory was largely seized by Northern Wei in 439, and his older brother Juqu Mujian (Prince Ai) was captured by Northern Wei, Juqu Wuhui tried to hold out against Northern Wei, initially on Northern Liang's old territory, and later, after that attempt failed, at Gaochang.
It was founded by the Xiongnu Juqu family, although they initially supported the Han official Duan Ye as prince, they overthrew him in 401 and took over the state for themselves.
If it was Princess Meng, then she died in the Northern Wei capital Pingcheng (平城, in modern Datong, Shanxi) after Juqu Mujian's capital Guzang (姑臧, in modern Wuwei, Gansu) had fallen to Northern Wei forces and he had been taken captive, but she was still buried with honors due a princess.
In 439, Emperor Taiwu conquered Northern Liang, and took Juqu Mujian as a captive to the Northern Wei capital Pingcheng (平城, in modern Datong, Shanxi), but because of Princess Wuwei's sake, continued to honor Juqu Mujian as a brother-in-law with the title Prince of Hexi.