Yun Prefecture (Shanxi) Explained

Yunzhou or Yun Prefecture was a zhou (prefecture) in imperial China seated in modern Datong, Shanxi, China. It existed (intermittently) from 640 to 1044.

It was one of the Sixteen Prefectures.

References

• Book: Shi Weile. 2005. Zhongguo Lishi Diming Da Cidian (中国历史地名大词典). Large Dictionary of Chinese Historical Place Names. China Social Sciences Press. 7-5004-4929-1. 320. zh.