Château de Bonnefontaine is a château in Altwiller in the department of Bas-Rhin, France. It was completed between 1818 and 1822. Its neo-classical Palladian portico is decorated with sphinxes.
The mineral water spring was discovered in 1603. This gave the idea in 1816 to a banker from Basel to build a thermal spa with castle, park and dance hall, since destroyed. The banker sold the estate in 1836. Since 1878 it has been owned by the Schlumberger family. It became a listed monument historique in 1991.
References
- Haug, Hans (1962). L' art en Alsace: 318 héliogravures, 6 planches-couleurs, 20 plans d'édifices (in French). Arthaud. p. 175.
- Base Mérimée: Château de Bonnefontaine, Ministère français de la Culture. (in French)
- Cahiers alsaciens d'archéologie, d'art et d'histoire (in French). Société pour la conservation des monuments historiques d'Alsace. 1991. p. 213.
48°54′28″N 6°59′37″E / 48.90778°N 6.99361°E / 48.90778; 6.99361
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