Mademoiselle Marie-Jeanne Fesch Chevallier, Black chalk and watercolor, 14 x 18 3/8 in. (35.5 x 46.7 cm), Louis Ren? Boquet (French, 1717?1814), Mlle. Marie-Jeanne Fesch Chevallier (Paris 1722 - after 1789 Paris) was a famous French opera singer. She