Rabenstein Castle in Saxony
Rabenstein Castle is the restored hill castle, built around 1310 as the imperial castle for Louis IV, Holy Roman Emperor. In 1386 the castle was captured by Burgrave Albrecht von Leissnig. The castle is part of the Schlossbergmuseum Chemnitz.
Source
The article Burg Rabenstein (Chemnitz) of German Wikipedia.

Image copyright info
© Creative Commons: Burg Rabenstein in Sachsen. IMG 5978WI, author Kora27. License: CC BY-SA 4.0. Cropped from original.