The Château de Tiffauges is a medieval castle situated in the French commune of Tiffauges in the Vendée département. The castle is also known as the château de Barbe-bleue after its most famous resident, Gilles de Rais, known as Barbe-bleue. It was here that Bluebeard perpetrated his atrocities. The castle is in the Marches (border lands) between Brittany, Poitou and Anjou and thus an important strategic point. It is positioned on a hill at the confluence of the Sèvre Nantaise and Crûme rivers, this position providing protection against assailants.
The castle was built between the 12th and 16th centuries. The notorious murderer, Gilles de Rais (1404–1440) is associated with the castle.