Jean Perréal -- sometimes called Peréal, Johannes Parisienus or Jean De Paris -- was a successful portraitist for French Royalty in the first half of the 16th century, as well as an architect, sculptor and limner of illuminated manuscripts. He was active mostly in France and in Italy and London as well.
Anne of Brittany, receives a book in praise of famous women, painted by Jean Perréal.
Complainte de la Nature, 1516
Valet de chambre, or varlet de chambre, was a court appointment introduced in the late Middle Ages, common from the 14th century onwards. Royal households had many persons appointed at any time. While some valets simply waited on the patron, or looked after his clothes and other personal needs, itself potentially a powerful and lucrative position, others had more specialized functions. At the most prestigious level it could be akin to a monarch or ruler's personal secretary, as was the case of Anne de Montmorency at the court of Francis I of France. For noblemen pursuing a career as courtiers, like Étienne de Vesc, it was a common early step on the ladder to higher offices.
Jean de Vaudetar, valet to King Charles V of France, presents the king with his gift of an illuminated manuscript by Jean Bondol, who was also a valet de chambre, in 1372. Vaudetar was a nobleman, already in charge of the Louvre palace, who was to progress further at court.
Papal valets kneel during The Mass at Bolsena by Raphael, himself a Papal valet who may himself be here, looking at the viewer
Probable self-portrait of Jan van Eyck painted in 1433. He became a valet in 1425, at a very high salary, and remained one until his death. He was also used as a diplomat, and once performed a pilgrimage on behalf of his Duke.
Portrait of Concino Concini, a favourite who probably began as valet de chambre to Maria de Medici, by Daniel Dumonstier, also a valet de chambre.