Düren is a Kreis in the west of North Rhine-Westphalia, Germany. Neighboring districts are Heinsberg, Neuss, Rhein-Erft-Kreis, Euskirchen and Aachen. The district was created in 1972 by merging the former districts of Jülich and Düren. Both districts date back to 1816 when the new Prussian province Rhineland was created. Before the Napoleoni…Düren is a Kreis in the west of North Rhine-Westphalia, Germany. Neighboring districts are Heinsberg, Neuss, Rhein-Erft-Kreis, Euskirchen and Aachen. The district was created in 1972 by merging the former districts of Jülich and Düren. Both districts date back to 1816 when the new Prussian province Rhineland was created. Before the Napoleonic Wars all of the area belonged to the duchy of Jülich.