Armand Jean de Vignerot du Plessis, 2nd Duke of Richelieu (3 October 1629 – 20 May 1715),[1][2] was a French naval officer and nobleman.

[4] He was carefully raised with his two brothers under the direction of his father's sister, the Duchess of Aiguillon, who had a marked preference for him.

He joined up with Don John of Austria's fleet off Capri but was unable to land the troops he was transporting.

The art works the duke inherited from Cardinal Richelieu were the beginning of a collection that was admired for its quality by Gian Lorenzo Bernini when he visited Paris in 1665.

Dulin also made two large portraits of the Duke, one dressed as a Roman on horseback, the other of him in armour.