The Duchy of Jülich-Berg was a historical territory located in what is now western Germany. It emerged in the late Middle Ages and was part of the larger region of the Duchy of Jülich, which included areas around the cities of Jülich and Berg. The duchy played a significant role in the political landscape of the Holy Roman Empire and was known for its strategic importance and rich resources. In the 16th century, the duchy became a focal point of conflict during the War of the Jülich Succession. This conflict involved various European powers, including the Spanish Empire and the Duchy of Cleves, as they vied for control over the region. Ultimately, the duchy was absorbed into the Electorate of Brandenburg in the 17th century, marking the end of its independent status.