18th century French school, entourage of Maurice QUENTIN DE LA TOUR. Portrait of Sophie de Courcillon, Duchesse de Piquigny, Princesse de Rohan (1713-1756). Pastel (framed but without glass). Height 65 cm - Width 53 cm Louis XIV period carved wood frame. Old handwritten label on the back identifying the model with Madame Berbier du Metz. Note: Reprise of the pastel by Maurice Quentin de la Tour recently acquired by the Stockholm Museum. Appraisal by Cabinet TURQUIN, Mr Stéphane PINTA - 01 47 03 48 78 - stephane.pinta@turquin.fr