Minden is a middle-sized town in the very north-east of North Rhine-Westphalia, Germany, the largest town in population between Bielefeld and Hanover. It is the capital of the district (Kreis) of Minden-Lübbecke, which is part of the region of Detmold. The town extends along both sides of the River Weser, and is crossed by the Mittelland Canal, which is led over the river on the Minden Aqueduct.

Bielefeld is a city in the Ostwestfalen-Lippe Region in the north-east of North Rhine-Westphalia, Germany. With a population of 341,755, it is also the most populous city in the administrative region of Detmold and the 18th largest city in Germany.