To be privately owned
CastleMazères
Château de Roquetaillade

The Château de Roquetaillade is a castle in Mazères (near Bordeaux), in the French département of Gironde.
Charlemagne, on his way to the Pyrenees with Roland, built the first fortification there. Of this old castle, nothing remains but imposing ruins.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: Hervé Rebours
This description draws on the facts documented in the linked Wikipedia article; Wikipedia content is licensed under CC BY-SA 4.0. Wording and editing: Mobile History.
Location: 44.4926, -0.2696