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/

Further reading:
https://www.tate.org.uk/tate-etc/issue-43-summer-2018/lives-of-the-artists-angelica-kauffman-martin-myrone
https://www.barnebys.com/blog/angelica-kauffmann-the-child-prodigy
https://www.royalacademy.org.uk/article/ra-magazine-summer-2016-hidden-from-history
https://www.angelika-kauffmann.de/en/akrp-home-2/