Düren is a town in North Rhine-Westphalia, Germany, between Aachen and Cologne, on the river Rur. The area of Düren was part of Gallia …Düren is a town in North Rhine-Westphalia, Germany, between Aachen and Cologne, on the river Rur. The area of Düren was part of Gallia Belgica, more specifically the territory of the Eburones, a people who were described as both Belgae and Germani. It was conquered by the Roman Republic under Julius Caesar and became part of Germania inferior.