In 433, Emperor Taiwu of Wei married his younger sister Princess Wuwei (Tuoba) to Juqu Mujian, the king of Northern Liang.
In the eighth year of Taiping Zhenjun [zh] (447), Juqu Mujian was accused of planning a rebellion and was executed, and Princess Wuwei's mother Princess Tuoba was remarried to Li Gai, the Duke of Nanjun.
[1][2] In the early years of Emperor Xianwen, when he returned to the Northern Wei from Koguryo, he gave Gao Qian (Chinese: 高潛; pinyin: Gāo qián) the title of Kaiyang and he settled in Liaodong.
Emperor Xianwen married the daughter of Juqu Mujian and Princess Wuwei to Gao Qian,[3] and also gave her the same title as her mother, thus naming her Princess Wuwei.
[4] They had a son together, named Gao Chong (Chinese: 高崇; pinyin: Gāo chóng).