Auray.
Fought September 27, 1364, between the partisans of John de Montfort, and those of Charles of Blois, the rival claimants to the Dukedom of Brittany. The English party, under Sir John Chandos, were besieging Auray, when they were attacked by the French, who were led by Bertrand du Guesclin. Chandos' position, however, was very strong, and the French were unable to make any impression upon it. Meanwhile they were thrown into utter confusion by an attack on their flank, and were ultimately routed, with heavy loss, Charles of Blois being among the slain. Bertrand du Guesclin was captured. De Montfort was shortly afterwards acknowledged by Charles V of France as Duke of Brittany.