Why is Fan Zhongyan's posthumous title called Zheng Wen?

In the history of China, after the Tang Dynasty, most people who got Zheng Wen, the posthumous title, were admired by the literati at that time, such as Fan Zhongyan and Zeng Guofan.

Fan Zhongyan, Wen Xi, Han nationality. Suzhou Wuxian people. An outstanding thinker, politician and writer in the Northern Song Dynasty.

In the eighth year of Dazhong Xiangfu, he gave the manager of Guangde a title to join the army and welcome his mother back to support him. Later, he served as Xinghua county magistrate, manager of Secret Pavilion School, chief judge of Zhou Chen, and well-known in Suzhou. And has been repeatedly criticized for his rude remarks. In the first year of Kangding, together with Han Qi, he was appointed as Shaanxi deputy envoy to appease and recruit soldiers, and adopted the policy of "long-term farming" to consolidate the northwest frontier defense. Three years later, Li Qing became a participant in government affairs and initiated the "Qingli New Deal". Soon, when the New Deal was frustrated, Fan Zhongyan was demoted to Beijing and learned about Zhangzhou, Dengzhou, Hangzhou and Qingzhou. In the fourth year, he changed Zhizhou to Yingzhou, and Fan Zhongyan took office to help the sick and died on the way, at the age of 64. The King of Chu posthumously conferred the title of Minister of War, posthumous title "Zheng Wen", known as the Duke of Fan Wenzheng.

Fan Zhongyan's political achievements are outstanding, and his literary achievements are outstanding. His thought of "worrying about the world first, and enjoying the world later" and the integrity of people with lofty ideals have a far-reaching impact on future generations. There are a number of Fan Wenzheng official documents handed down from ancient times.