First of all, correct a small mistake in the following topic. By the Warring States period, the Han, Zhao and Wei clans had been divided into Jin, and the three clans were also considered as the dividing point of the Spring and Autumn Period and the Warring States Period, so Jin should be regarded as the Spring and Autumn Period.

The founding emperor of the State of Jin was the son of Jiang Ziya, who was an orthodox vassal state. During the Spring and Autumn Period, the State of Jin has always been a big country in the Central Plains, covering the whole of Shanxi, southern Inner Mongolia, eastern and northern Shaanxi, central and southern Hebei, northwestern Henan, and even extending to northwestern Shandong at its peak.

Because of its strong national strength, Jin became one of the five tyrants in the Spring and Autumn Period, and its strength was relatively stable since then, so it was evaluated as one of the four great powers in the Spring and Autumn Period by many historical books (the four great powers in the Spring and Autumn Period were Qin, Jin, Qi and Chu).

Since Emperor Xiao of Jin, the capital of Jin has been Yicheng. During the period of Emperor Zhao of Jin Dynasty, Emperor Zhao sealed the land of Quwo to his uncle, Duke Huan of Quwo, as his teacher. And this Quwo is bigger than the Golden Shield Yicheng, which seriously threatens the status of the monarch of the State of Jin, leading to the constant struggle between Quwo and Yicheng. After several generations of struggle, Quwo's martial arts finally replaced the original monarch of the State of Jin and became the orthodoxy of the State of Jin, and he himself became the Duke of Wu of Jin.

During the Jin Xiangong period, in order to prevent the recurrence of the Dai Yi incident in Quwo, Jin Xiangong not only killed many sons of the former State of Jin, but also moved the capital to yujiang county. Since then, the capital of the State of Jin has been in Jiangxi for more than 80 years. It was during this period that Jin Wengong became the overlord in the Spring and Autumn Period, so Jiangxi witnessed the most prosperous period of the State of Jin.

During the period of Duke Jing of Jin, he moved his capital to Xintian and changed his name to Xinjiang. During the period of Jin Pinggong, the county was established, which was also the earliest city in the history of China.

Therefore, the capital of Jin is in chronological order, followed by Yicheng, Jiangxi and Xinjiang. Yicheng should be roughly in Yicheng County, Shanxi Province today; Jiang is also called Old Jiang, and its detailed address remains to be verified, but most of them are consistent with the site of Zhaokang Ancient City on the east side of Zhao Kang Village in Xiangfen County. Xinjiang is now in houma city.

The scope of the Jin Dynasty is different from that of today's county, so it is difficult to know in detail, but we know that the Golden Shield should be within the scope of Yicheng, Quwo, Xiangfen and Houma.