Francis I, Duke of Brittany

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Francis I
Duke of Brittany; Count of Montfort
Reign 29 August 1442 – 18 July 1450
Predecessor John V
Successor Peter II
Born 11 May 1414
Died 17 July 1450(1450-07-17) (aged 36)
Château de l'Hermine
Burial Redon Abbey
Spouse Yolande of Anjou
Isabella of Scotland
Issue Renaud, Count of Montfort
Margaret, Duchess of Brittany
Marie, Viscountess of Rohan
House House of Montfort
Father John V
Mother Joan of France
Religion Roman Catholicism

Francis I (in Breton Fransez I, in French François I) (Vannes/Gwened, 14 May 1414 – 18 July 1450, Château de l'Hermine/Kastell an Erminig), was Duke of Brittany, Count of Montfort and titular Earl of Richmond, from 1442 to his death. He was son of Duke John V and Joan of France.


Francis I's first marriage was to Yolande of Anjou, daughter of Louis II of Anjou; they were married at Nantes in 1431. Francis and Yolande had a son, Renaud, Count of Montfort. Renaud died young and Yolande died in 1440.

His second marriage was to Isabel of Scotland (daughter of James I, King of Scots); he married Isabel at the Château d'Auray on 30 October 1442. Francis and Isabel had two daughters:


Francis I died in 1450. Because he had no male heirs at the time of his death, he was succeeded by his younger brother, Peter II.


See also

Francis I, Duke of Brittany
Regnal titles
Preceded by
John V
Duke of Brittany
Count of Montfort

Succeeded by
Peter II
Peerage of England
Preceded by
John V
Earl of Richmond
Succeeded by
Peter II