First of all, Ling Du comes from an old saying, Zhou Jun has no spirit and ghosts, and Du Bo has a temple and ten thousand people respect him. It tells the origin of Dubo ancestral hall. Jingzhao was the name of An in ancient times, and the name of Gyeonggi area in Han Dynasty was the general name of Gyeonggi area after Zhou Wangji and Qin Gyeonggi. In ancient times, it was also a second-level administrative unit, and its jurisdiction was equivalent to Xi' an and its nearby areas in Shaanxi.

Jingzhao County in Han Dynasty was under the jurisdiction of Jingzhaoyin, and Jingzhao, Zuo Fengyi and You Fufeng were collectively called "Three Assistants in Guanzhong" or "Three Qins in Guanzhong". At the beginning of the Three Kingdoms, it was changed to Jingzhao County. There were three administrative divisions named Chang 'an area in the Tang Dynasty. In the first year of Kaiyuan reign of Emperor Xuanzong of Tang Dynasty, Yongzheng was promoted to Jingzhao, and Jingzhao County was changed to Jingzhao.

In 220 of the first year of the Three Kingdoms, Jingzhaoyin was changed to Jingzhao County. 22 1 In the second year, Emperor gave Qin Gong a change, Jingzhao County changed to Qin Province, and in the third year changed to Jingzhao State. In the third year of Qinglong in Wei Mingdi, the emperor was made king of Qing Dynasty, and the Jing Dynasty was changed to Qin Dynasty. In the first five years, the King of Qi (ICY) changed to Jingzhao County.

Jingzhao County was established in the Western Qin Dynasty, and its jurisdiction was smaller than that in the Three Kingdoms period. During the Sixteen Kingdoms period, records of Zhao Qian, Qinhe, Postal Service, Western Wei Dynasty and Northern Zhou Dynasty were found in Zhao County or Yin County. Successfully established the place where Chang 'an was established (after Chang 'an). Sui and Tang Dynasties were Chang 'an, another new city. It's another name for Daxing City. In 653, Tang Gaozong Yonghui was renamed Chang 'an City.

So Du Fu pretended to be like this because Jingzhao is the place name of his ancestral temple, which represents the origin of Du's surname, meaning that his ancestral temple also represents his surname.