War of the Breton Succession
Quimper was originally settled during Roman times. By AD 495, the town had become a Bishopric. It subsequently became the capital of the counts of Cornouailles. In the eleventh century, it was united with the Duchy of Brittany. During the War of the Breton Succession (1341–1364), the town suffered considerable ruin. In 1364, the duchy passed to the House of Montfort.