Youzhou

Youzhou or You Prefecture (also known as You Province) is a place name for an ancient zhou or prefecture in northern China. A prefecture as a political subdivision in Chinese history was at various times either the size of a province or sub-provincial unit known as commandery. The size of Youzhou`s jurisdiction varied in history. Youzhou is cited....
Found on http://en.wikipedia.org/wiki/Youzhou

Youzhou

(from the article `Beijing`) ...including the site where Beijing now stands, was largely under the control of invading nomads. It was not recovered by the Han people until the ...
Found on http://www.britannica.com/eb/a-z/y/12
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