Sotheby's auctioned this work. Their notes included this, "The sitter in this portrait Laetitia Boyer, was married to one of Napoleon's most significant naval commander's, General LaGrange. The sitter's sister, Christine Boyer, married Lucien Bonaparte and the family were close confidantes of Napoleon..."
From the-athenaeum.org/art/full.php?ID=123572#.
Mrs. LaGrange poses suggestively with one half of her criss-cross (?) bodice folded over to show her chemise. Her chemise provides her full sleeves.
Keywords: 1808, Girodet de Roucy-Troisson, Laetitia Boyer, marquise de LaGrange, Boyer family, LaGrange family, Marquise, French, curly coiffure, chemise, squate décolletage, quarter length full sleeves, criss-cross bodice, strap sleeves, vee neckline, belt, jeweled buckle, Empire waistline, close skirt, wrap