Johanna von Dreux

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Johanna von Dreux called the Lame ( la Boiteuse ) (* 1319 ; † September 10, 1384 ) was Countess of Penthièvre and titular Duchess of Brittany during the War of the Breton Succession . She was the only child of Guido von Dreux , Count von Penthièvre, and after the death of her father in 1331 as niece of the childless Duke Johann III. of Brittany, its potential heiress.

In 1337 she was married to Karl von Blois in Paris , and in 1341, after the death of John III, together with her husband, she raised a claim to Brittany. Here she was supported by the French crown, but found an adversary in John IV , a half-brother of John III. from the second marriage of Duke Arthur II to Yolande de Dreux , whose claims were supported by the English crown. The result of this conflict was the Breton War of Succession, which only ended in 1364 with the defeat and death of Charles of Blois in the Battle of Auray .