Jean de Malestroit was Bishop of the Roman Catholic Diocese of Nantes from 17 Jul 1419 until 1443 AD when he resigned, and he was a pseudo-cardinal, during the fifteenth century.
Born in 1375 in Châteaugiron in the Duchy of Brittany, Jean de Malestroit was the sixth known son of Jean de Châteaugiron, lord of Malestroit and Largoët who died in 1374 and his second wife Jeanne Dol Dame de Combourg. He is also the half-brother Thibaud Malestroit (died 1408), who was bishop of Tréguier in 1378 and Quimper in 1383 AD.
Jean Malestroit was Archdeacon of the Diocese of Nantes. He was elected bishop of Saint Brieuc in 1405 and then joined the Privy Council of John VI, Duke of Brittany and became Governor General of Brittany's finances in 1406, He was First President of the Chamber of Accounts for Brittany at the beginning of 1408 AD, then Chancellor, Duke and Treasurer Receiver General of the Duchy of Brittany a few months later. He was transferred to the diocese of Nantes July 17, 1419.
Malestroit (Breton: Malastred) is a commune in the Morbihan department of Brittany in north-western France.
Inhabitants of Malestroit are called in French Malestroyens.
The canal is a delightful place to spend a little time, and you can watch the barges as they moor up near the centre of Malestroit. It is possible to hire a boat yourself to explore the waterway, and this is a pleasant and different way to discover the area. The nearby village of St. Marcel is an interesting spot to visit, and it houses a museum dedicated to the Breton Resistance movement. This is located on the ground where a battle against the Nazis took place, the battle having been won by the Resistance fighters.