486328 Bertrand du Guesclin (engraving) by French School, (16th century); Private Collection; (add.info.: Bertrand du Guesclin (c.1320-80) known as \'Eagle of Brittany\' or the \'Black Dog of Broc矇liande\', was a Breton knight and French military commander during the Hundred Years\' War. He was a Constable of France from 1370 until his death. Bertrand du Guesclin Comte de Longueville Conestable de France. ); French, out of copyright.