《北史·列传·卷三十九》
天保元年，朝廷封归彦为平秦王，他的长母康氏和生母王氏一起被封为太妃，他善于侍奉两位母亲，以孝顺闻名。
天保元年，封平秦王，嫡妃康及所生母王氏，并为太妃。善事二母，以孝闻。
In the first year of Tianbao, the imperial court named Guiyan the King of Pingqin, and his eldest mother Kang and his biological mother Wang were both named Taifei. He was good at serving the two mothers and was known for his filial piety.