"Portrait of a lady, three quarter length, as Saint Mary Magdalen, a landscape beyond", Henri Gascar
Portrait of a woman, presumably madame de montespan (1640-1707)
identification proposed by user ecummenic (talk) based on the comparison with some portrait of madame de montespan (see image below). Date: 17th century. Dimensions: height: 82.5 cm (32.4 in); width: 135.3 cm (53.2 in). Medium: oil on canvas. Collection: Unidentified location. Circle of Gascar - Portrait of a lady as Saint Mary Magdalen, a landscape beyond