Duc d'Aiguilion

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The French title Duc d'Aiguilion may refer to any one of its holders:

Incorporated to the French crown 1621–1638. Cardinal Richelieu purchased this dukedom in 1638 and gave it to Marie Madeleine, the daughter of René Vignerot and his wife Françoise du Plessis, sister of Richelieu:

Suppressed by the French Revolution 1789.