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Heritage classified

Key figures

Origin and history

The Kersaliou mansion was originally built at the end of the 14th century, probably for Rolland de Kersaliou and his wife Méance Taupin, lords linked to Jean IV de Montfort, Duke of Brittany. This couple, who also sponsored the southern chapel of the church of La Roche-Derrian in 1376, embodied the local aristocracy under the ducal authority. The mansion, conceived as a house-door in schist, reflects their territorial power and piety, with architectural details inspired by neighbouring religious buildings, such as the moulurations of the arches.

In the 16th century, the mansion underwent major changes, marking its adaptation to the residential evolutions of the Renaissance. However, its decline began in the 19th century when it was converted into a farm: the main house was destroyed and replaced by agricultural buildings, leaving only the house-door intact, now close to its original state. These changes illustrate the shift from a seigneurial residence to a rural farm, typical of the social changes in Brittany.

Ranked in the general inventory of cultural heritage and partially protected since 1932 (facades and roofs), the Kersaliou mansion embodies the memory of Breton noble families and their architectural heritage. Its erased coat of arms and its trilobed niches, inspired by local religious art, highlight the close links between secular and sacred power at the end of the Middle Ages. The sources, including Historic Monuments and Wikipedia, confirm its anchoring in the history of the Côtes-d.

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