Armand Jean de Vignerot du Plessis, 2ème duc de Richelieu (Paris, 1629 - Paris, 1715) was a French sailor and nobleman.
The great-nephew of Cardinal de Richelieu (to whose dukedom he succeeded), he became a general of the gallies in 1642. He was sent to Naples, which had risen up against the Spanish and proclaimed the Neapolitan Republic. He joined up with Don John of Austria's fleet off Capri but was unable to land the troops he was transporting.
| French nobility | ||
|---|---|---|
| Preceded by Armand I du Plessis, cardinal de Richelieu, 1st duc de Richelieu |
Duke of Richelieu 1657-1715 |
Succeeded by Louis I de Vignerot du Plessis, 3rd duc de Richelieu |
| Preceded by Claire-Clémence de Maillé-Brézé |
Duke of Fronsac 1674-1715 |
Succeeded by Louis I de Vignerot du Plessis, 3rd duc de Richelieu |