This superb miniature must have been painted during the last years of the 18th century and resembles Isabey's Portrait of Dr Duchanois of 1798, illustrated in the exhibition catalogue Jean-Baptiste Isabey (1767-1855) portraitiste de l'Europe, Malmaison, Musée national des Châteaux de Malmaison et Bois-Préau and Nancy, Musée des Beaux-Arts, 2005-2006, no. 38.