Jacques Thouron (1749-1789) was doubtlessly the best Genevan enamel miniaturist of the late 18th Century. According to Henri Bouchot (La miniature française 1750-1825, Paris, 1910, p. 107), Françoise Mégret d'Etigny née Thomas de Pange was probably one of Thouron's sponsors which could explain the existence of several versions of the present miniature (including one, on a tortoiseshell box, formerly in the Fitzhenry Collection, and one, framed in a gold medallion, formerly in the Emile Artus Collection).

Pierre-François-Mathis de Beaulieu (fl. 1752-1791) was apprenticed to Jean George whose widow he later married. Boxes by his hand are to be found in the Louvre, the Wallace Collection, the Ashmolean Museum, the Metropolitan Museum of Art and The Cleveland Museum of Art.
We are indebted to Comte Christian de Pange for the informations on Françoise d'Etigny.