From the Norton Simon Museum, top and right edges fixed with Photoshop by gogm.
Comtesse d'Estrades is portrayed in casual at-home dress with a fur-trimmed satin jacket with built-in cape in this Vestier portrait. She could be wearing not much more than a good chemise beneath her jacket. Her coiffure places this in the 1780s.
Keywords: Vestier, Comtesse d'Estrades, long curly coiffure, ribbon headdress, fichu, vee neckline, jacket, cape, fur, long full sleeves, pendant