La Brenne, located west of Châteauroux and east of Tournon-Saint-Martin in the Indre department, is a region which of old straddled on the former provinces of Berry and Touraine, and is now a protected natural area (Parc naturel régional de la Brenne) as well called Pays des mille étangs, because of its many ponds created since the 8th c. by the monks of the local abbeys for pisciculture.