c. 1823. Oil on canvas. The Metropolitan Museum of Art, New York, USA. Read Note.
Madame Leblanc, Françoise Poncelle (1788-1839) married Monsieur Jacques-Louis Leblanc (1774-1846) in Florence in 1811. He was the secretary of cabinet of Grand Duchess of Tuscany Elisa Bacciochi, sister of Napoleon. They were friends of Ingres since 1821. In 1823 Ingres also painted their daughter Isaure Leblanc (1818-1895); whereabouts of the portrait are unknown