From Reunion des Musées Nationaux via Wikimedia; photo Gérard Blot. Image size doubled.
All of that pomp and circumstance and such a cute little dog. Her sumptuous dress has a split bodice held by clasps.
Keywords: 1700, Rigaud, Blot, Marie Anne de Bourbon (1666-1739), princesse de Conti, , Princesse de Conti première douairière, Mademoiselle de Blois, Bourbon family, Princess, French, long coiffure, chemise, scoop neckline, elbow length notched full under-sleeves, cuffs, bodice, quarter length notched full over-sleeves, full skirt, shoes, robes