Yu Chenglong was praised by Emperor Kangxi as the first upright official in Qing Dynasty. Yu Chenglong, whose name is Bei Ai, was born in Yongning Prefecture (now fangshan county). Born in the forty-fifth year of Wanli in the Ming Dynasty (16 17), he died in the twenty-third year of Kangxi in the Qing Dynasty (1684), at the age of 67, and was named "Qing Duan" as a gift to the Prince of Taibao.

In the 12th year of Chongzhen in the Ming Dynasty (1639), Yu Chenglong served as an assistant envoy, and in the 18th year of Shunzhi in the Qing Dynasty (16 1), he served as a magistrate, a Taoist priest, a provincial judge, a minister, a governor-general, a minister of armed forces and a university student. In his career of more than 20 years, he was praised as "outstanding" three times. With his outstanding achievements and honest and industrious life, he won the love of the people and the praise of Emperor Kangxi, and became famous in the ruling and opposition circles, known as "the first honest official in the world".

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After Yu Chenglong's death, Nanjing's "men and women" went on strike in tears. Tens of thousands of people hold incense every day. Next to Lai Yong, he is a peddler, and Semu and Monk Fan also fell to the ground and cried. " It can be seen that the middle and lower classes are very sad about his death. Emperor Kangxi made an exception and personally wrote an inscription, which was an recognition of his honest and clean life.

Yu Chenglong is good at calligraphy and poetry. His works and manuscripts have been edited by his disciples and Sun into seven volumes, appendix 1 and eight volumes, and the book of justice by Yu Qing Duan. In addition, during his tenure in Zhili and Liangjiang, Yu Chenglong also compiled 46 volumes of Jifu Tongzhi and 54 volumes of Jiangnan Tongzhi, which contributed to sorting out and preserving local political, economic and cultural materials.

Yu Chenglong Lishi district government