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Heritage classified

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Origin and history

The Artois estate, located on horseback on Mordelles and Talensac in Ille-et-Vilaine, is an architectural complex of the seventeenth century, inscribed as historical monuments in 2014. It replaces a former medieval mansion, La Rivière, seat of the seigneury of Artois, and incorporates elements such as a castral mot and moat. The present house, built around 1675, is surrounded by outbuildings (commons, mill, orangery) and a chapel dedicated to Saint Christine, rebuilt in the 19th century. The ensemble reflects the classical Breton architecture, with schist bellow facades and croup roofs.

The estate originally belonged to the lords of Artois, then passed by alliances and sales to the Gougeon families (15th century), the Gate (16th century), and Rousselet (17th century). The latter, including François-Louis de Rousselet, Marquis de Châteaurenault, had the present castle built. The Viscount of Artois, created in 1679, then changed hands (Comtes d'Estaing, Visdelou, Bourgeois du Marais). A fire in 1939 partially destroyed the west wing, housing a library of 30,000 books. The site, preserved in an agricultural setting, preserves traces of its seigneurial past, like a fire in the old church of Mordelles.

The architecture of the estate illustrates the social status of its owners, often linked to the Parliament of Brittany. The house, symmetrically arranged with a central body and two wings, features limestone and granite frames, pediment windows, and a moat-lined terrace. The chapel, located on a hill, houses the burials of the owners. Orangery, added at the end of the 18th – early 19th century, and the mill, testify to the economic autonomy of the estate. The nearby castral motte on the town of Talensac recalls the medieval origin of the site.

Ranked for its homogeneity and its state of conservation, the domain of Artois embodies the evolution of the Breton aristocratic residences, moving from a medieval fortress to a residence of classical pleasure. Its inscription in 2014 covers all buildings, including enclosure walls and surrounding parcels. The site, although little known, has been documented since the 19th and 20th centuries by local scholars, highlighting its regional heritage importance.

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