The Château de Rosanbo, in the Breton commune of Lanvellec in the French département of Côtes d'Armor, overlooks the Bô river valley. The origin of its name stems from this fact, as in Breton it means "rock on the Bô".
It has been classified as a Monument historique.
Wikipedia https://en.wikipedia.org/wiki/Château_de_Rosanbo
Address 22420, France
Coordinates 48°37'35.84" N -3°33'4.444" E