This may, or may not be, Leonardo's work. The pose is stiff, which would be unusual for Leonardo, and the woman's features are thicker and heavier than those normally found in his portraits. Bernard Berenson once said of this portrait, "one would regret to have to accept this as Leonardo's own work." Those in favour of this being a genuine Leonardo point to the knotted ribbons on her shoulders and the cords around her neck which do resemble Leonardo's style.