Mervent () is a commune in the Vendée department in the Pays de la Loire region in western France. Places and monuments The Château de la Citardière The Old Castle ruins in the village, The church Saint-Medard The Mère river. The Mervent-Vouvant forest The Pierre-Brune recreation park The Natur’Zoo. The cave where Louis de Montfort (an 18th-century catholic priest) prayed Main sights See also Communes of the Vendée department References Communes of Vendée