Situated in the regions of Rouergue, Quercy and l’Albigeois, the Château de Cas is a medieval building neighbouring Caylus and Saint-Antonin-Noble-Val, in the Tarn-et-Garonne region of southwest France. The castle, not far from the Gorge de l’Aveyron, stands out by its stature in the Vallée de la Bonnette and is an important part of regional history. The Château de Cas is a castle situated in the commune of Espinas. It was built as a defensive fortress in the 9th century on a former Gallo-Roman site. In the 13th century, it came under possession of the Commandership of La Capelle-Livron during the time of the Knights Templar.