The Hardenburg on the eastern edge of the Palatinate Forest near the Rhineland-Palatinate town of Bad Dürkheim is even as a ruin one of the mightiest castles of Palatinate.
The Hardenburg on the eastern edge of the Palatinate Forest near the Rhineland-Palatinate town of Bad Dürkheim is even as a ruin one of the mightiest castles of Palatinate.