title: Yun Prefecture (Shanxi)
text: # Yun Prefecture (Shanxi)
  
  Yunzhou or Yun Prefecture (Chinese: 雲州) 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.
  
  