The Château de Breteuil is a château situated in the Vallée de Chevreuse in Yvelines department of France, 35 km to the southwest of Paris. The château was designated a monument historique in 1973.
The family of the Marquis de Breteuil gave three ministers to the Kings of France. The château is still owned by the Breteuil family.
The design is similar to the Château de Dampierre-en-Yvelines by Jules Hardouin-Mansart.
Wikipedia https://en.wikipedia.org/wiki/Château_de_Breteuil
Official Website http://breteuil.fr/
Address (Unnamed Road), 78460, France
Coordinates 48°40'48.796" N 2°1'22.933" E