|Intercommunality||Pays de Couiza|
|• Mayor (2008–2014)||Robert Sanchez|
|Area1||4.47 km2 (1.73 sq mi)|
|• Density||12/km2 (32/sq mi)|
|Time zone||CET (UTC+1)|
|• Summer (DST)||CEST (UTC+2)|
|INSEE/Postal code||11109 /11190|
|Elevation||235–548 m (771–1,798 ft)
(avg. 318 m or 1,043 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km² (0.386 sq mi or 247 acres) and river estuaries.2 Population without double counting: residents of multiple communes (e.g., students and military personnel) only counted once.
In the twelfth century, the lordship of Coustaussa belonged to the Vilar family. In the fourteenth century, it was in the hands of the de Fenouillet family. In 1367, by the marriage of Geraude de Fenouillet to Saix de Montesquieu, the lordship passed to the Montesquieus who kept it until the French Revolution.
During the night of 31 October to 1 November 1897, the parish priest of Coustaussa, the Abbé Antoine Gélis, was brutally murdered in his presbytery. The crime was not solved. The Abbé was found during the investigation to possess large sums of money which had not been taken by his assailants.
Since March 2001, the Mayor of the commune has been Robert Sanchez.
Places of interest
Coustaussa has a ruined castle.
- Departmental Archives of the Aude, Collection 7J (Montesquieu-Coustaussa)
- J Riviere, G Tappa, C Boumendil (1996), Le Fabuleux Tresor de Rennes-le-Chateau! Le Secret de L'Abbé Gelis - La Piste Corse, Cazilhac, Belisane ISBN 2-910730-04-2
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