Spangenberg is a small town in northeastern Hesse, Germany. Spangenberg lies in the Schwalm-Eder district some 35 km southeas…Spangenberg is a small town in northeastern Hesse, Germany. Spangenberg lies in the Schwalm-Eder district some 35 km southeast of Kassel, west of the Stölzinger Gebirge, a low mountain range. Spangenberg is the demographic centrepoint of Germany.