Electorate of Cologne
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County of Mark
Kingdom of Prussia
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Brandenburg–Prussia
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Saxe-Coburg and Gotha
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Adelaide of Saxe-Meiningen
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Andrey Osterman
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Margrave
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Duchy of Berg
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Unna (district)
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Menden
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Ennepe-Ruhr-Kreis
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Altena
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Märkischer Kreis
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Hamm, North Rhine-Westphalia
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Gelsenkirchen
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Hagen
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Wilhelm I
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Dortmund
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Frederick the Great
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Ruhr
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Prince Albert of Saxe-Coburg and Gotha
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Gerardus Mercator
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Marquess
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Pig iron
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Anne of Cleves
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Mark
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John Sigismund, Elector of Brandenburg
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Hanseatic League
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Frederick William, the Great Elector
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Cologne
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