Marie-Guillemine Benoist (December 18, 1768-October 8, 1826) was a French neoclassical, historical, and genre painter.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Marie-Guillemine_Benoist

Portrait of Elisa Bonaparte, Grand Duchess of Tuscany by Marie-Guillemine Benoist
c.1805 / Oil on canvas / 84-1/4″x50-3/4″ / Museo Nazionale di Palazzo Mansi, Lucca, Italy

Marie-Guillemine Benoist on Artnet: http://www.artnet.com/artists/marie-guilhelmine-benoist/

Further reading:
https://artherstory.net/marie-guillemine-benoist-revolutionary-painter/
National Museum of Women in the Arts: https://bit.ly/3EZcSi2
French Ministry of Culture: https://bit.ly/3oVeBzB