Francis I, Duke of Brittany

Duke of Brittany from 1442 to 1450

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Yolande of Anjou

(m. 1431; died 1440)

Isabella of Scotland

(m. 1442)

Issue

Renaud, Count of Montfort
Margaret, Duchess of Brittany
Marie, Viscountess of Rohan

HouseMontfortFatherJohn V, Duke of BrittanyMotherJoan of France

Francis I (in Breton Fransez I, in French François I) (11 May 1414 – 17 July 1450), was Duke of Brittany, Count of Montfort and titular Earl of Richmond, from 29 August 1442 to his death. He was born in Vannes, the son of John V, Duke of Brittany and Joan of France,^[1] the daughter of King Charles VI of France.

Family

Francis I was originally engaged to Bonne of Savoy, the daughter of Amadeus VIII, Duke of Savoy, and his wife Mary of Burgundy. She died just before their marriage in 1430, at the age of 15.^[2]

Francis I's first marriage was to Yolande of Anjou,^[1] daughter of Louis II, Duke of Anjou and Yolande of Aragon; they were married in Nantes in August 1431. Francis and Yolande had a son, Renaud, Count of Montfort. His son Renaud died young^[3] and his wife Yolande died in 1440.^[3]

Francis' second marriage was to Isabel of Scotland,^[1] daughter of James I, King of Scots and Joan Beaufort. He married Isabel at the Château d'Auray on 30 October 1442. Francis and Isabel had two daughters:

Margaret of Brittany (1443–1469, Nantes),^[1] married Francis II, Duke of Brittany^[4]
Marie of Brittany (1444–1506),^[1] married John II, Viscount of Rohan and Count of Porhoët.^[5]

Succession

Francis I died on 17 July 1450 at the Château de l'Hermine, being only 36 years of age. Because he had no surviving male heirs at the time of his death, he was succeeded as Duke of Brittany by his younger brother, Peter II of Brittany.

During his time, the residences of the Dukes of Brittany consisted of: the Château de l'Hermine; the Château de Nantes; the Château de Clisson; and the Château de Suscinio.

Ancestry

Ancestors of Francis I, Duke of Brittany

16. Arthur II, Duke of Brittany

8. John of Montfort

17. Yolande of Dreux

4. John IV, Duke of Brittany

18. Louis I, Count of Nevers

9. Joanna of Flanders

19. Joan, Countess of Rethel

2. John V, Duke of Brittany

20. Philip III of Navarre

10. Charles II of Navarre

21. Joan II of Navarre

5. Joan of Navarre

22. John II of France (=#24)

11. Joan of France

23. Bonne of Bohemia (=#25)

1. Francis I, Duke of Brittany

24. John II of France (=#22)

12. Charles V of France

25. Bonne of Bohemia (=#23)

6. Charles VI of France

26. Peter I, Duke of Bourbon

13. Joanna of Bourbon

27. Isabella of Valois

3. Joan of France

28. Stephen II, Duke of Bavaria

14. Stephen III, Duke of Bavaria

29. Elisabeth of Sicily

7. Isabeau of Bavaria

30. Bernabò Visconti, Duke of Milan

15. Taddea Visconti

31. Beatrice Regina della Scala

References

^ ^a ^b ^c ^d ^e Booton 2010, p. 8.
^ Chaubet, Daniel (1984). "Une enquête historique en Savoie au XVe siècle". Journal des Savants (in French). 1 (1): 112, n. 45. doi:10.3406/jds.1984.1477. Archived from the original on 4 November 2023.
^ ^a ^b Rohr 2016, p. 207.
^ Booton 2010, p. 317.
^ Booton 2010, p. 125.

Sources

Booton, Diane E. (2010). Manuscripts, Market and the Transition to Print in Late Medieval Brittany. Ashgate Publishing.
Rohr, Zita Eva (2016). Yolande of Aragon (1381-1442) Family and Power: The Reverse of the Tapestry. Palgrave Macmillan.

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Regnal titles
Francis I, Duke of Brittany House of Montfort
Preceded by John V	Duke of Brittany Count of Montfort 1442–1450	Succeeded by Peter II
Peerage of England
Preceded by John V	— TITULAR — Earl of Richmond 1442–1450	Succeeded by Peter II

Monarchs of Brittany

Early monarchs

c. 578–907	Waroch Saint Judicael Alain II Hir Morman Wihomarc Nominoe Erispoe Salomon Pascweten Gurvand Judicael Alan I Gourmaëlon

Viking occupation

c. 907–938	Hroflr Rognvaldr Incon

House of Nantes

938–958	Alan II (938–952) Drogo (952–958) Hoël I (960–981) Guerech (981–988) Alan (III) (988–990)

House of Rennes

958–1072	Conan I (990–992) Geoffrey I (992–1008) Alan III (1008–1040) Odo I (1008–1034) Conan II (1040–1066) Hawise (1066–1072) with Hoël II (1066–1072)

House of Cornouaille

1072–1156	Alan IV (1072–1112) Conan III (1112–1148) Bertha (1148–1156) with Odo II (1148–1156)

House of Penthièvre

1156–1196	Conan IV (1156–1166) Constance (1166–1201) with Geoffrey II (1181–1186) later Guy of Thouars (1199–1201)

House of Plantagenet

1196–1203	Arthur I (1196–1203)

House of Thouars

1203–1221	Alix (1203–1221) with Peter I (1213–1221)

House of Dreux

1221–1341	John I (1221–1286) John II (1286–1305) Arthur II (1305–1312) John III (1312–1341)

War of the Breton Succession

1341–1365	Joan (1341–1364) with Charles (1341–1364) disputed by John of Montfort (1341–1345) and John IV (1345–1365)

Montfort of Brittany

1365–1514	John IV (1365–1399) John V (1399–1442) Francis I (1442–1450) Peter II (1450–1457) Arthur III (1457–1458) Francis II (1458–1488) Anne (1488–1514)