Wernerseck Castle

Wernerseck Castle, also called the Kelterhausburg, is a late medieval hill castle in the municipality of Ochtendung in the county of Mayen-Koblenz in the German state of Rhineland-Palatinate. It owes its name to its founder and lord of the castle, the Archbishop of Trier, Werner of Falkenstein. "Wernerseck" means "Werner's corner".

Source: Wikipedia