Grafendahn Castle lies in the southern Palatine Forest, the German part of the Wasgau region, just under 1 kilometre east of the small town of Dahn in the state of Rhineland-Palatinate.
Wikipedia https://en.wikipedia.org/wiki/Grafendahn_Castle
Address 1 Burg Altdahn, 66994, Germany
Coordinates 49°9'0.659" N 7°48'7.975" E