Changshan is located in Zhengding County, Hebei Province. During the Three Kingdoms period, Zhengding County was subordinate to Changshan County of Wei State, and was also called "Sanxiong Town in the North" with Beijing and Baoding. Zhengding County is a national historical and cultural city, the hometown of Chinese folk art and the hometown of General Zhao Zilong.

Changshan Zhao Zilong is Zhao Yun's slogan in every battle. Similar to introducing yourself, letting others know your name can play a deterrent role. Similarly, there is Yan.

Zhao Zilong's life record.

Zhao Yun followed General Liu Bei for nearly 30 years, participated in Bowangpo Campaign, Changbanpo Campaign and Jiangnan Pacification Campaign, and commanded the Battle of Entering Sichuan, Hanshui Campaign and Ji Gu Campaign alone, all of which achieved very good results. In addition to fighting everywhere, Zhao Yun also took the partial general as the prefect of Guiyang, stayed in the camp, stayed behind the public security, and supervised Jiangzhou with the general of Yijun.

In addition, when Zhao Yun pacified Yizhou, he quoted the story of Huo Qubing to persuade Liu Bei to return the farmland to the people. After Guan Yu and Zhang Fei were killed, he advised Liu Bei not to attack Wu. He was praised by later generations as a Confucian general with a large number of ministers, and even considered a perfect figure in the Three Kingdoms period.