Who dated Pierre-Paul Prud'hon?

Pierre-Paul Prud'hon (French pronunciation: [pjɛʁ pɔl pʁydɔ̃], 4 April 1758 – 16 February 16, 1823) was a French Neo-classical painter and draughtsman best known in his own time for his allegorical paintings and portraits, now for his drawings. He painted a portrait of both of Napoleon's two wives.

He was an early influence on Théodore Géricault. After 1803 he worked so closely with artist Constance Mayer on many paintings, that it is almost impossible to tell where the contribution of one ends and the other begins.

Marie-Françoise Constance Mayer La Martinière (9 March 1775 – 26 May 1821) was a French painter of portraits, allegorical subjects, miniatures and genre works. She had "a brilliant but bitter career."