In the Han Dynasty, the spouses of emperors were divided into three categories: queens, concubines and concubines. Empresses, also known as "Jun", such as Huo, Xu Pingjun and Wang, are the matchmaker of the emperor and the head of the Sixth Courtyard. Zhaoyi is the head of the concubines group after the Empress. And "Zhao Rong", "Madam" and so on. "Jieyu" is the first of many, and there are "gifted scholars" and "beauties" under it. In this way, "Zhao Yi" is actually higher than "Jieyu". Among Zhao Yi and Zhao Rong, those who get titles can also be called princesses, such as Xian Fei and Shu Fei. The generation of "Jieyu", "gifted scholar" and "beauty" can never call themselves "princesses". This is also a manifestation of the strict hierarchy of the palace.

Ban Jieyu and Zhao in history were both concubines of Liu Ao, the Emperor of the Han Dynasty. Ban Jieyu's literary talent was superior, but he was not favored, so he wrote Poems of Fans to mourn his experience. Zhao, whose real name is "Hede", is the sister of the famous beauty Zhao. In the first year of eternity, Emperor Cheng became the queen, and later he accepted Hede as his favorite concubine, even surpassing his sister. In the second year, Emperor Cheng died suddenly in Hede Palace, and Zhao was accused of being salty at home and abroad. Zhao Yi