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Origin and history

Bréon Castle is an 18th-century building located in Marigné-Peuton, Mayenne department. Built in the middle of this century, it was enlarged around 1860 by a pavilion and wing. The estate, known for its breeding of Shorthorn cattle and purebred horses, became an agricultural model under the leadership of Count Marc-Jean-Alphonse de Lancrau de Bréon, which introduced innovations and exploited its influence to modernize the region.

The chapel of the castle, mentioned as early as XII (1803-1804) for its conservation, was finally isolated in the 19th century. The farm was abolished in 1857, refocusing the estate on its breeding activities. The archives also reveal the ancient presence of a Terra de Brehon from the twelfth century, attested in the cartular of the abbey of the Roë, although the present castle dates from the eighteenth century.

The castle is linked to two noble families: the de Bréon, whose member was governor of Craon in 1563, and the de Lancreau, who had been settled in Mayenne since the 15th century. Their weapons, described in 1667, still adorn some local buildings. Christophe de Bréon, last direct representative in 1667, transmitted the name by alliance. The Count of Lancreau de Bréon, in the 19th century, marked the history of the estate by its commitment to agriculture and livestock.

Historical sources include parish registers, departmental archives (Mayenne, Sarthe, Maine-et-Loire) and National Library fonds. The site is referenced in the Dictionnaire historique de la Mayenne (1900-1910) and on the map of Cassini, confirming its territorial anchoring and its role in local history.

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