《魏书·列传·卷八十三》
神瑞二年，姚兴又派散骑常侍东武侯姚敞、尚书姚泰进奉他的西平公主给太宗，太宗以皇后之礼接纳了她。
二年，兴遣散骑常侍东武侯姚敞、尚书姚泰奉其西平公主于太宗，帝以后礼纳之。
In the second year of Shenrui, Yao Xing sent Yao Chang, a patroling imperial attendant and Duke of Dongwu, and Yao Tai, an official in the Ministry of Works, to present his daughter, the Princess of Xiping, to Emperor Tai Zong, who received her with the礼 of an empress.