A genealogical sketch of her is here.
From pinterest.co//otatuana/кринолины-фотографии/; removed sepia tone and filled in shadows.
Baroness Caroline’s moiré dress has pagoda sleeves with not-so-prominent under-sleeves. She may be wearing a draw string adjusted neck ornament.
Keywords: Caroline Vansittart, Lady Vaux of Harrowden, Vansittart family, Moslyn family, Baroness, British, straight coiffure, chignon, high neckline, collar, jacket bodice, elbow length pagoda sleeves, ruffles, under-sleeves, cuffs, buttons, natural waistline, crinoline, shoes