From pinterest.com/pin/464644886532333881/.
The Countess wears something like a turban or cap of sheer material and a straight coiffure that would be in style in 1840.
Keywords: Wissing, Emilia Butler, Amelia of Nassau, Countess of Ossory, Emilia van Nassau-Beverweerd, van Nassau-Beverweerd family, Butler family, Countess, Lady-in-Waiting, Catherine of Braganza, British, straight coiffure, cap, veil, chemise, scoop décolletage, elbow length flared under-sleeves, jeweled arm bands, over-dress, brooch, quarter length close flared over-sleeves, clasps, close skirt