Margaret Seton (1805-1870), granddaughter of Baron Alexander Seton Carl Stefan Bennet (1800-1878)

The picture has something of this: portrait, woman, people, wear, jacket, lid, jewelry, outerwear, fashion, gown, model, veil, dress, girl, outfit.
Perhaps it’s a portrait of a woman in a black dress with a white collar and a red ribbon around her neck and a black and white collar.