Berg was a state—originally a county, later a duchy—in the Rhineland of Germany. Its capital was Düsseldorf. It existed as a distinct political entity from the early 12th to the 19th centuries.
Duchy of Berg
The ducal palace at Düsseldorf, 1798 copper engraving by Laurenz Janscha. The palace burnt down in 1872.
The Rhineland is a loosely defined area of Western Germany along the Rhine, chiefly its middle section.
Deutsches Eck, Koblenz
Roman and barbarian parts of the Rhineland
Attack by the Swedish army on the Spanish troops in Bacharach during the Thirty Years' War