Blaye (; ) is a commune and subprefecture in the Gironde department in Nouvelle-Aquitaine in southwestern France. For centuries, Blaye was a particularly convenient crossing point for those who came from the north and went to Bordeaux or further south, to Spain and Portugal. Fortified since antiquity, this eminently strategic site located on the bank of a large river, was modernized at the end of the 17th century, thanks to Vauban. In 1685, the Commissaire general des fortifications of Louis XIV proposed the construction of a real lock on the Gironde in order to "take control of the river" and to hold Bordeaux in case of a revolt. It is then that the citadel of Blaye was built, constituting the major element of the estuary control system. Dominating the urban landscape, this imposing building has been listed as a UNESCO World Heritage Site since 2008, as part of a group of structures engineered by Vauban, in testimony to their global influence on military architecture and planning over the next few centuries. Population Its inhabitants are called Blayais or Blayaises in French. Geography Blaye is located on the right bank of the Gironde estuary (which is some wide at this point), close to the A10 autoroute, north of Bordeaux. There is a rail line with occasional freight trains, but no passenger services. A small ferry crosses the Gironde to Lamarque, in Medoc. History In ancient times Blaye (Blavia) was a port of the Santones. Tradition states that the Frankish hero Roland was buried in its basilica, which was on the site of the citadel. It is an important location in the epic Jourdain de Blaye. Blaye was early an important stronghold which played an important part in the wars against the English (who burnt it in 1352) and the French Wars of Religion (when it was the site of a Spanish naval victory in 1593). The duchess of Berry was imprisoned in its fortress in 1832–1833. The town was formerly named Blaye-et-Sainte-Luce and was renamed Blaye in June 1961. Sights The town has a citadel built by Vauban on a rock beside the river, which contains the ruins of a medieval castle, Château des Rudel(fr), and the ruins of Basilica of Saint-Romain, which holds the tomb of Charibert II, king of Aquitaine, and son of Clotaire II. Nearby, Fort Paté, on an island in the river, and Fort Médoc on its