What is the true identity of Cheng, whose ancestors are equally famous with Guo Jia?

As we all know, when it comes to the heroic journey of Sui and Tang Dynasties, a simple and honest look may emerge in everyone's mind. In the novels and TV dramas you saw, he was born in a poor family and raised by a lonely old mother. Later, he was arrested for smuggling salt and was almost beheaded. His life should not be doomed, just in time for Yang Guang's accession to the throne and his amnesty, and he was released from prison. Originally, he listened to his mother's words and sold firewood honestly. As a result, he met You Junda, a noisy horse. Under You Junda's bluff, he robbed Yang Lin's emperor, causing trouble, and 36 people in Jia Gulou became sworn friends.

After that, he became a crock master with the support of everyone, and later gave way to Shi Biao. However, Shi Biao's own status has improved, and he gradually ignored the general crock, which caused the two brothers to break up. Cheng and others defected to Zheng Wang and Wang. But after a long time, Cheng found that Wang, who looked brave on the surface, was actually narrow-minded and not a good man. So he defected to Li Shimin again.

But in fact, Cheng was not born in poverty, and he didn't do anything to rob the emperor. His great-grandfather was a famous Yanzhou Sima in Northern Qi Dynasty, his grandfather was a Jinzhou Sima in Northern Qi Dynasty, and his father was a Jeju Taisho. During the Wei and Jin Dynasties, the system of "Nine Grades Being Right" was implemented, and the position of Cheng's father was responsible for evaluating the rank of local gentry officials, which had great power. Therefore, Cheng was not born in poverty, but in a good family.

Cheng is very different from novels in history. His real identity is actually a government official. The novel may have tampered with history. It appeared in one of my grave robbery cases and provided a basis for understanding Cheng.