Yvelines

Île-de-France

Château de Breteuil

Île-de-France

Château de Dampierre-en-Yvelines

Designed by Jules Hardouin-Mansart for the Duke of Chevreuse, Colbert's son-in-law, then reworked in the 19th century by a Duke of Luynes who was a patron of Ingres, Dampierre shows the power of a family close to the throne. Set deep in its valley west of Paris, this brick and stone château looks…