Maria Anna Angelika Kauffmann RA (October 30, 1741-November 5, 1807), usually known in English as Angelica Kauffman, was a Swiss painter who had a successful career in London and Rome.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Angelica_Kauffman
Study of a Standing Woman by Angelica Kauffmann
1792–96(?) / Black chalk, heightened with white chalk, on paper / 15-5/16″x9-3/4″ / The Met, NYC
Angelica Kauffmann on Artnet: http://www.artnet.com/artists/angelika-kauffmann/