Bad Berleburg is a town and a municipality in the Siegen-Wittgenstein district, in North Rhine-Westphalia, Germany. It is situated in the Rothaargebirge, approx. 30 km north-east of Siegen and 35 km north-west of Marburg. Siegen-Wittgenstein is a Kreis (district) in the south-east of North Rhine-Westphalia, Germany. ... North Rhine-Westphalia (German: Nordrhein-Westfalen, usually shortened to: NRW) is - in population and economic output - the largest Federal State of Germany. ... Siegen is a city in North Rhine-Westphalia, Germany. ... Marburg is a city in Hesse, Germany, on the Lahn river. ...