| Bernard d’Armagnac - Count of Armagnac | Destroyed the castrum in 1170. |
| Famille de Montesquiou - Owners since the 12th century | Barons then dukes linked to the castle. |
| Chapitre de Sainte-Marie d’Auch - Contribute to reconstruction | Finance the fortress after 1170. |
| Aimery de Montesquiou-Fezensac d’Artagnan - Current owner (called "duc") | Former Deputy and Senator of Gers. |