In the TV series "Do you know that it should be red, fat, green and thin", the owner of Jiacheng County is the daughter of the six emperors of the Dynasty, or simply the daughter of the emperor's cousin. Although the status of the princess is not as noble as that of the princess, it is second only to that of the princess, which is a very noble status.

A county magistrate is the title of a woman born in an ancient imperial clan, which is the same as that of a princess and a princess, but the status of a county magistrate is lower than that of a princess and a princess, because a princess is the daughter of an emperor's own brother, a county magistrate is the daughter of an emperor's relative, and a county magistrate is equivalent to two products.

Therefore, in "Do you know if it should be red, fat, green and thin", adult Jia Cheng and grandpa Qi Heng belong to the opposite family in terms of identity, and Qi Heng is also a child of the emperor's relatives, while Princess Pinning, Qi Heng's mother, is a child born to the emperor's brother, and is also a cousin. Jiacheng County's father and emperor are cousins.

The title of the princess originated in the Eastern Han Dynasty, and the daughter of the emperor was named the princess of the county. In addition to the princess, there are also township owners and pavilion owners. Later, the emperor's daughter became a princess.