《宋史·列传·卷二》
刘婕妤坐在别的座位，脸有怒色，侍从为她换去座椅，制式与皇后相同。
婕妤在他坐，有愠色，从者为易坐，制与后等。
Imperial Concubine Liu sat on another seat, with an angry expression on her face. The attendants changed the seat for her to be the same with the empress.