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Origin and history

The Château de la Ferté-sur-Grosne, located in Saint-Ambreuil in Saône-et-Loire, was originally the abbey of La Ferté. Built near La Grosne, it served as a residence for abbots until the French Revolution. After the disappearance of the surrounding religious buildings, it was classified among the castles of the region and integrated into the Route des châteaux in Burgundy of the South, a set of heritage places open to the public.

In 1791, the abbatial ensemble was sold as national property to Jean-Marie and Joseph Passault, who quickly sold it to Jean-Baptiste Humblot, MP for the third state. The latter kept only the abbey house, while the other buildings were demolished to recover their materials. The castle then became a private property, passed on to the descendants of Humblot, including Baron Jacques Thénard, current owner since at least 2011.

Architecturally, the castle consists of a long rectangular building flanked by two pavilions, with a western facade decorated with ionic pilasters and a decorated pediment. The present English-style gardens replace the former missing religious buildings. Ranked a historic monument in 1993, the castle today hosts public events, such as rare plant fairs, while remaining a private residence.

The site is linked to French scientific history: in the 20th century it belonged to Baron A. Thénard, descendant of chemist Louis Jacques Thénard, whose wife was a heiress of Jean-Baptiste Humblot. This connection illustrates the transition from a religious heritage to a secular property, marked by political and scientific figures.

The Château de la Ferté-sur-Grosne is representative of the transformations of Burgundy heritage, where ancient monastic places became aristocratic or bourgeois residences. Its openness to the public and its integration into a tourist itinerary underline its current role in valuing local heritage.

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