Duke of Richelieu

Duke of Richelieu was a title of French nobility. It was created on 26 November 1629 for Armand Jean du Plessis de Richelieu (known as Cardinal Richelieu) who, as a Roman Catholic clergyman, had no issue to pass it down to. It instead passed to his great-nephew, Armand Jean de Vignerot, grandson of his elder sister Françoise du Plessis (1577–1615), who had married René de Vignerot, Seigneur de Pontcourlay († 1625).

Duke of Richelieu

Duke of Richelieu was a title of French nobility. It was created on 26 November 1629 for Armand Jean du Plessis de Richelieu (known as Cardinal Richelieu) who, as a Roman Catholic clergyman, had no issue to pass it down to. It instead passed to his great-nephew, Armand Jean de Vignerot, grandson of his elder sister Françoise du Plessis (1577–1615), who had married René de Vignerot, Seigneur de Pontcourlay († 1625).