 He re-organized the postal network and in 1598 contributed to the creation of the modern French public postal services by opening up the royal postal service to the public, in commemoration of which a stamp bearing his likeness was issued by the French Post Office in 1946.The King's sister, Catherine de Bourbon, Duchess of Bar and wife of Henry II, Duke of Lorraine, once said to Fouquet, whom she had known as a cook