When was Cosne castle built?

The castle dates from the late tenth or early eleventh century, when the bishop of Auxerre enfeoffed it to the count of Nevers.

How did the castle escape demolition?

Sold during the Revolution and threatened with destruction, it was saved between 1853 and 1855 by its conversion into a departmental prison, then purchased by the town in 1947.

Who designed the former prison?

Pierre Paillard, the departmental architect, oversaw its construction between 1853 and 1855, applying the progressive principles of nineteenth-century carceral design.

Vieux château et ancienne prison

Cosne-Cours-sur-Loire

Access

No visits on recordNo opening hours or ticketing found

Where: Cosne-Cours-sur-Loire

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Open within 20 km

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Vieux château et ancienne prison stands in Cosne-Cours-sur-Loire (Nièvre), in the Bourgogne-Franche-Comté region of France. The building is registered as a historic monument (dating recorded in the Mérimée database: 11e, milieu 19th century). No visits are on record for this building.

Cosne's castle dates from around the tenth and eleventh centuries, built in an octagonal design with flanking towers and surrounded by ditches. After the Revolution, it faced demolition but was saved by its conversion into a departmental prison, built in 1853-1855 according to nineteenth-century carceral principles. The ensemble, purchased by the town in 1947, combines these two layers: the medieval fortress and the cellular prison that ensured its survival.

What to know

The castle retains traces of its medieval occupation: the original octagonal fortifications, the ditches, and the gate tower that opened onto the town.
The former prison, built in 1853-1855 by architect Pierre Paillard, applied the cellular system and the Pennsylvanian surveillance model, progressive for its time.
The site currently houses municipal services; visiting depends on access conditions and availability through the town hall.

Where this château is

Cosne-Cours-sur-Loire · Nièvre · Bourgogne-Franche-Comté

Map of the area around Vieux château et ancienne prison

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This châteauChâteaux within 40 km

Address

Cosne-Cours-sur-Loire, Nièvre

Directions open from wherever you are, by car or public transport.

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Heritage status: Registered historic monument (inscrit); Mérimée record PA58000052
Period of construction: 11e, milieu 19th century

Frequently asked

When was Cosne castle built?: The castle dates from the late tenth or early eleventh century, when the bishop of Auxerre enfeoffed it to the count of Nevers.
How did the castle escape demolition?: Sold during the Revolution and threatened with destruction, it was saved between 1853 and 1855 by its conversion into a departmental prison, then purchased by the town in 1947.
Who designed the former prison?: Pierre Paillard, the departmental architect, oversaw its construction between 1853 and 1855, applying the progressive principles of nineteenth-century carceral design.