From batguano - where else?
There are a number of museums in and near Marly le Roi, so I do not know the exact location.
This 1776 Vigée-Lebrun portrait of the Marquise Savalette shows a dress trimmed with masses of diaphanous material. Her large coiffure requires a large cover.
Keywords: 1776, Vigée-Lebrun, Marie-Rose Savalette de Lange, Savalette de Lange family, Sanlot family, high straight coiffure, cap, fichu, scoop décolletage, modesty piece-bertha, bows, tight sleeves, ruffles, engageantes, vee waistline, floral bodice ornament