The County of Mark was a County of the Holy Roman Empire in the Rhineland, lying on both sides of the Ruhr River along the Volume and Lehme Rivers. After 1701 Mark was/is part of the Kingdom of Prussia.
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The County of Mark was a County of the Holy Roman Empire in the Rhineland, lying on both sides of the Ruhr River along the Volume and Lehme Rivers. After 1701 Mark was/is part of the Kingdom of Prussia.