"Joanna of Flanders (c. 1295 \u2013 September 1374), also known as Countess Jeanne, Jeanne de Montfort, Jehanne de Montfort, and Jeanne la Flamme (Fiery Joanna), was consort Duchess of Brittany by her marriage to John de Montfort. Much of her life was taken up in defence of the rights of her husband and, later, son to the dukedom, which was challenged by the House of Blois during the War of the Breton Succession."@en . "Joanna Of Flanders"@en . . "1341Z"^^ . "1295Z"^^ . "Joanna"@en . . . "1341Z"^^ . "1374Z"^^ . . . "Duchess of Brittany" . . .