 For both these monarchs he executed many portraits in enamel—among them quite a number of plaques depicting Diane de Poitiers in various characters, plates, vases, ewers, and cups, besides decorative works for the royal palaces, for, though he is best known as an enameller distinguished for rich color, and for graceful designs in grisaille on black or bright blue backgrounds, he also enjoyed a great reputation as an oil-painter.His last signed works bear the date 1574, but the date of his death is uncertain, though it could not have been later than the beginning of 1577.It is on record that he executed close upon two thousand enamels.