Her article in thepeerage is here.
From nationaltrustcollections.org.uk/object/355520.
Lady Emma Sophie is dressed in ca. 1820 style with a rigid A-line skirt.
Keywords: Emma Sophia Edgcumbe, Countess of Brownlow, Edgcumbe family, Cust family, Countess, British, Lady-in-Waiting, Queen Adelaide, curly coiffure, turban, Empire bodice, modesty piece, necklace, jeweled crucifix, square neckline, neckline ruff, quarter length full sleeves, tight cuffs, Empire waistline, A-line skirt, wrap