Caozhou or Cao Prefecture (曹州) was a zhou (prefecture) in imperial China centering on modern Heze or Cao County in Shandong, China. It existed (intermittently) from the 6th century to 1913.
Geography
Under the
Sui dynasty, Cao Prefecture included Yuanqu County. The administrative region of Caozhou in the
Tang dynasty is in the border region of modern southwestern
Shandong and eastern
Henan. It probably includes parts of modern:
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Under the administration of Heze, Shandong:
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Under the administration of Shangqiu, Henan:
