The ruins of Alt-Eberstein.

The ruins of Alt-Eberstein, previously known as Eberstein castle, lie directly next to Ebersteinburg, an outlying community of Baden-Baden. Baden-Baden is a town in Baden-Württemberg, Germany. It is located on the western foothills of the Black Forest, on the banks of the Oos River

The castle was built around 1100 as a residence to the Counts of Eberstein. The Counts of Eberstein were a family of nobility in Baden, Germany