Portrait of the Duchess of La Vallière and her children Mademoiselle de Blois and the Count of Vermandois (?), Pierre Mignard I

Date: 17th century. Dimensions: height: 189 cm (74.4 in); width: 249 cm (98 in). Medium: oil on canvas. Collection: Unidentified location. Studio of Mignard - Portrait de la duchesse de La Vallière et de ses enfants (?)