Prince of Guémené is a title of French nobility associated with the fiefdom of Guémené-sur-Scorff in Brittany and held within the House of Rohan. The fiefdom was bought on 26 May 1377, for 3,400 sous d'or by Jean de Rohan, Viscount of Rohan. Wikipedia
Past holders: Henri Louis, Prince of Guéméné and Charles Alain, Prince of Guéméné