Pierre Seguier, Marquis de Saint-Brisson 

This engraving by French artist Robert Nanteuil (1623-1678) depicts Pierre Seguier, Marquis de Saint-Brisson. The portrait is rendered in a classic, realistic style, showing the subject with a refined air in an oval frame, a popular format for portraiture in this period. The inclusion of the Marquis's coat of arms, featuring two angels and a shield, reinforces his noble status and adds a decorative element to the composition. This engraving is a prime example of Nanteuil's mastery of portraiture, capturing the likeness and presence of the Marquis with remarkable precision and detail.