The remains of the Castle can be visited
Château de Castelnau-de-Lévis

The Château de Castelnau-de-Lévis is a castle ruin located in the French region of Occitanie, in the commune of Castelnau-de-Lévis in the Tarn department.
History+
The origins of the Château de Castelnau-de-Lévis date back to the early 13th century, when Gicard Alamon initiated the construction of the complex under the name Castelnau de Bonnafonds. In the 15th century, the castle underwent reconstruction by the Lévis family. At this time, the seigneury came into the possession of Hugues d'Amboise, Baron d'Aubijoux, whose descendants held the fief until the 17th century.
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: 43.9396, 2.0840