Zhengding Ancient City Wall is located in Hebei Province. It was built in Beizhou and was originally built in stone. Tang Baoying first year (762) due to the overflow of the river and irrigation, the city was built in the day. Ming orthodox 14 years (1449), expanded to the circumference of 24 miles, three feet high, two feet wide earth city. Longqing five years (1571) Zhendingzhi County Gu Shu began to change the Tucheng to brick city, later Zhixian Zhou Yingzhong Shendong government bank silver more than 60,000, requisition Zhendingfu county under the county people's husband, segmented work, completed in Wanli four years (1576). Four city gate East Yingxu, Nanxu Changle, Xixu Zhenyuan, Beixu Yongan, and all with moon city and Yongcheng.