Burg Reichenberg, Medieval castle in Oppenweiler, Germany.

Burg Reichenberg is a stone fortress that sits on a hilltop near Oppenweiler in Baden-Württemberg and has shaped the landscape for centuries. Stone walls form a connected system, and several towers along with living and storage areas show how such a complex operated in medieval times.

The fortress was founded in the 1230s by Margrave Hermann V of Baden and served as a center for managing and controlling the territory. For centuries it remained an important point of power in the region.

The castle was a Ministerialburg: from 1230 the knights Wolfram and Berthold von Reichenberg are named, and from 1293 the Sturmfeder von Oppenweiler held it as ministerials, making it the administrative seat of the surrounding area. Visitors can still see stonemasons' marks that match those at Ebersberg and Besigheim castles.

Burg Reichenberg is not freely open: visits are possible only for groups and only by prior arrangement, so contact the operator before travelling. The complex stands on a rise above Oppenweiler in the Rems-Murr-Kreis; the former moat is now barely visible, and the original drawbridge has been replaced by a simple bridge that now forms the access.

The fortress was once connected to an important figure in German literature, when the son of playwright Friedrich Schiller worked there as a forest ranger. This link to German intellectual history shows how such castles continued to attract people in later times.