The remains of the Castle can be visited
Château de Aguilar

The Château de Aguilar is a castle ruin in the French region of Occitanie, near the commune of Tuchan in the Aude department. This fortress once served to monitor access to the Corbières mountains and was part of the defense line on the border with Aragon.
History+
The first mentions of a fortification at this site date back to 1021. In the 13th century, the Viscounts of Carcassonne transferred the complex to their vassals, the Seigneurs de Termes, who were close to the Cathars. Whether the castle was destroyed during the Albigensian Crusade is not clearly documented.
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: 42.8907, 2.7471