Original: Bertrand du Guesclin, or Du Gueselin (c. 1320   13 July 1380), known as the Eagle of Brittany, was a Breton knight and French military commander during the Hundred Years' War.
Simplified: Bertrand du Guesclin (c. 1320 – 13 July 1380), was a French knight from Brittany who fought in the Hundred Years' War.