Portrait of a lady, three-quarter-length, in a dark blue dress with gold brocade decoration, holding a mask and standing before a curtain, Jean-Baptiste Santerre

Portrait of a woman, presumably marie louise élisabeth d'orléans (1695-1719), daughter of philippe, duke of orléans (1674-1723). Identification proposed by user ecummenic (talk) based on the comparison with some portraits of that princess painted by pierre gobert (see images below). This portrait is identified on some websites as marie hortense racot de grandval (1676-1769). Object Type: painting. Date: 18th century. Dimensions: height: 120.5 cm (47.4 in); width: 90 cm (35.4 in). Medium: oil on canvas. Collection: Unidentified location. Studio of Santerre - Portrait of a lady in a dark blue dress with gold brocade decoration, holding a mask