House of Plessis de Richelieu
- Coat of Arms
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House of Plessis de Richelieu
Lords of Plessis, Breux, La Vervolière and Richelieu
Armand Jean du Plessis de Richelieu, Cardinal Richelieu was created 1st Duke of Richelieu
- Cadet Branches
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House of Vignerot du Plessis
Lords of Glenay
Lords and Marquises of Pont-Courlay
Counts of Cosnac and Chinon
Dukes of Fronsac, Richelieu, Agenois and Aiguillon
Princes of Mortagne
Matrilineal branch issued from Françoise du Plessis, younger sister of Cardinal Richelieu, 1st Duke of Richelieu