John I, Duke of Brittany

John I (Breton: Yann, French: Jean; c. 1217/18 – 8 October 1286), known as John the Red due to the colour of his beard, was Duke of Brittany from 1221 to his death and 2nd Earl of Richmond in 1268.

John I
John represented on a window in Chartes Cathedral
Duke of Brittany
Reign	21 October 1221 – 8 October 1286
Predecessor	Peter I & Alix
Successor	John II
Regent	Peter I
Earl of Richmond
Reign	1268
Predecessor	Peter of Savoy
Successor	John II
Born	c. 1217/18
Died	8 October 1286 Château de l'Isle
Burial	Prières Abbey
Spouse	Blanche of Navarre
Issue Among Others	John II Peter, Lord of Hade Alix, Countess of Blois
House	Dreux
Father	Peter I, Duke of Brittany
Mother	Alix, Duchess of Brittany
Religion	Roman Catholicism

John was the eldest of three children born to Duchess Alix and her husband and jure uxoris co-ruler, Duke Peter I.[1] He became duke upon his mother's death in 1221. His father, who had reigned as duke due to his marriage to Alix, ruled as regent until John reached adulthood.[2] In 1268, Henry III granted the earldom of Richmond to John,[3] and the title continued in his family, through frequent temporary forfeitures and reversions, until 1342.

He experienced a number of conflicts with the Bishop of Nantes and the Breton clergy. In 1240, he issued an edict expelling Jews from the duchy and cancelling all debts to them.[4] He joined Louis IX of France in the Eighth Crusade in 1270, and survived the plague that killed the king. The duchy of Brittany experienced a century of peace, beginning with John I and ending with Duke John III's reign in 1341.[5]

Marriage and issue

In 1236 John married Infanta Blanche, daughter of King Theobald I of Navarre.[6] They had the following surviving issue:

• John II, Duke of Brittany (1239–1305), married Beatrice of England and had issue.[7]
• Peter (1241–1268), Lord of Dinan, Hade, Léon, Hennebont and La Roche-Derrien.[7]
• Alix (1243–1288), Dame de Pontarcy; married John of Châtillon, Count of Blois.[7]
• Theobald (1245–1246), interred in the church abbey of Saint-Gildas-de-Rhuys.
• Theobald (1247 – died young), interred in the church abbey of Saint-Gildas-de-Rhuys.
• Eleanor (1248 – died young), interred in the church abbey of Saint-Gildas-de-Rhuys.
• Nicolas (1249–1251), interred in the church abbey of Saint-Gildas-de-Rhuys.
• Robert (1251–1259), interred in the church abbey of Saint-Gildas-de-Rhuys.

Ancestry

Ancestors of John I, Duke of Brittany

16. Louis VI of France 8. Robert I of Dreux 17. Adélaide de Maurienne 4. Robert II of Dreux 18. Guy de Baudement 9. Agnes de Baudemont, countess of Braine 19. Alix, Dame de Braine 2. Peter I, Duke of Brittany 20. Enguerrand II, Lord of Coucy 10. Ralph I, Lord of Coucy 21. Agnes de Baugency 5. Yolande de Coucy 22. Baldwin IV, Count of Hainaut 11. Agnes of Hainaut 23. Alice of Namur 1. John I, Duke of Brittany 24. Aimery V, Viscount of Thouars 12. Geoffroy IV, Viscount of Thouars 25. Agnes of Aquitaine 6. Guy of Thouars 26. Hugh VII of Lusignan 13. Aimée de Lusignan 27. Saracena 3. Alix of Thouars 28. Alan, 1st Earl of Richmond 14. Conan IV, Duke of Brittany 29. Bertha, Duchess of Brittany 7. Constance, Duchess of Brittany 30. Henry of Scotland 15. Margaret of Huntingdon 31. Ada de Warenne

References

1. Richard 1983, p. xxviii.
2. Lower 2005, p. 117.
3. Crawford 2002, p. 35.
4. Jones 1988, p. 140.
5. Jones 1988, p. 34.
6. Hallam & Everard 2001, p. 273.
7. Morvan 2009, p. table 2.

Sources

• Crawford, Anne (2002). Letters of Medieval Women. Sutton.
• Hallam, Elizabeth M.; Everard, Judith (2001). Capetian France, 987-1328. London: Longman. ISBN 9780582489097. OCLC 6813908.
• Jones, Michael (1988). The Creation of Brittany: A Late Medieval State. London: The Hambledon Press. ISBN 9780907628804. OCLC 16805427.
• Lower, Michael (2005). The Barons' Crusade: A Call to Arms and Its Consequences. University of Pennsylvania Press.
• Morvan, Frederic (2009). La Chevalerie bretonne et la formation de l'armee ducale (in French). Presses Universitaires de Rennes.
• Richard, Jean (1983). Lloyd, Simon (ed.). Saint Louis, Crusader King of France. Translated by Birrell, Jean. Cambridge University Press.

See also

• Dukes of Brittany family tree