En un regard
Le château en bref
Château du Plessis lies in Pont-Saint-Martin, south of Nantes, in Loire-Atlantique. A former fortified manor house, it retains building campaigns from the 15th, 17th and 19th centuries: burned in 1484, it was restored in 1630, and its courtyard façade dates from the 17th century. The estate belonged to the viscounts of Rezé from 1404, then passed to Michel Sauvaget in 1632. In the 18th century it became the seat of the seigneury of Pont-Saint-Martin when Nantes shipowner Nicolas Roche, then lord of Fermoy and du Plessis, acquired it. It subsequently passed to the Irish families O'Brien and Sheridan, who were allied with the Picot de Limoëlan family. Under the Restoration, Jean-Joachim Barbier bought it, and Barnabé Rozier became its owner through his marriage to Sophie Barbier in 1828. Badly deteriorated by 1972, the château was restored until 1988, including its roofing, chimneys, tuffeau stonework and rendering, and its gardens are listed in the Inventaire des parcs et jardins. The façades and roofs have been listed as monuments historiques since 11 April 1975. It remains a private property.