Siege of Brest (1342)

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The siege of Brest took place in 1342 during the Breton Civil War. When John III, the Duke of Brittany, died childless in 1341 the title was contested by Charles of Blois and John of Montfort. Charles was the nephew of the French king, Philip VI, who supported him with a large army. Charles invaded Brittany, making good progress and taking John prisoner. John's wife, Joanna of Flanders, took up the Montfortist cause and fought on. As France and England had been fighting the Hundred Years' War since 1337 Joanna appealed to Edward III, the English king, for military assistance, which was promised.

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