Duke of AiguillonDuke of Aiguillon was a title of French nobility in the peerage of France, first created in 1599 by Henry IV of France for Henry of Lorraine, son of Charles, Duke of Mayenne. The title takes its name from the town of Aiguillon.List of dukes of Aiguillon, 1599—1789The last Duke of Aiguillon supported the early stages of the French Revolution and became a general of the French Revolutionary Army, but had to flee at the time of the Reign of Terror.