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Origin and history

The Château de Thorigné-en-Charnie, located in Thorigné-en-Charnie in Mayenne (Pays de la Loire), is a medieval defensive complex located on the "butte des châteaux" and the "supaux-châteaux", near the D583. This site marks the southeast end of the fortifications erected by the Viscounts of Maine. It consists of three successive earthen enclosures, surrounded by ditches that can be flooded, and extends 450 meters long for 150 wide. The largest enclosure is in the east, the smallest in the centre, and the third in the west, all connected. The main entrance was protected by a fort, now reduced to a mound, once surmounted by a wooden tower. The slopes, 18 meters high, were crowned with palissades.

In the third enclosure, a square dungeon of 20 meters side, with thick walls of 4 meters, is distinguished by its oblique orientation compared to the earth rise. A spiral staircase is integrated into its masonry, still 20 meters high depending on the sources. This stone dungeon is an exception in the region of Lower Maine, where fortifications were usually earth mounds surmounted by wooden towers. A chapel, mentioned on the map of Jaillot but disappeared around 1860, completed the whole. Curé Joseph Maillard studied this site, highlighting its original defensive system, based on the surrounding marshes rather than on a steep position. It also evokes hypothetical traces of an artillery seat and a drawbridge.

The lords of Thorigné, the powerful family of the barony of Laval from the 11th century, were at the origin of this fortress. Raoul de Thorigné (~1090) is quoted in the cartular of Saint Vincent, while his descendant, Raoul de Thorigné (XIII century), was sentenced to found a chapel at the Abbey of Etival-en-Charnie after killing a cleric. Payen de Thorigné confirmed this foundation in 1263. The seigneury then passed to the Counts of Alençon, like François (1382) and René (XV century), before being alienated to the family of Bouillé in 1594 by Henry IV. Claude de Bouillé, then his descendants, became owners until the 18th century, when the site gradually lost its military role.

The castle of Thorigné-en-Charnie illustrates the evolution of medieval defensive techniques, combining land, wood and stone. Its dungeon, a rare example of masonry in the region, bears witness to the influence of local lords, while its ditches and swamps reflect a strategy adapted to the terrain. The disappearance of the chapel in the 19th century and subsequent transformations have erased part of its history, but the remaining remains make it a major archaeological site of Maine.

Today, the ruins of the "Châteaux" of Thorigné, surrounded by preserved landscapes, offer an overview of the conflicts and alliances that marked the Lower Maine. Close to sites such as the abbey of Évron or the castle of Sainte-Suzanne, this monument recalls the key role of noble families (Thorigné, Alençon, Bouillé) in the territorial and military structure of the region between the 11th and 17th centuries.

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