The Duchy of Berg was a historical territory located in what is now western Germany. It emerged in the late Middle Ages and became a significant part of the Holy Roman Empire. The duchy was known for its rich resources and strategic location, which contributed to its political importance. In the 16th century, the Duchy of Berg was ruled by the House of Berg, which played a crucial role in regional politics. The duchy eventually became part of the Duchy of Cleves and later was incorporated into the Prussian Empire in the 18th century, marking the end of its independent status.