Duke of Brittany

The Duchy of Brittany was an independent state from 841 to 1532. Its rulers were never free from outside influence, however, with England and France competing for their favours and attention.

Brittany was conquered in 799 by emperor Charlemagne, who had after that to lead military expeditions to fight breton rebellions in 801 and 811. His son, Louis the Pious, came with his army in 818, 824 and 837. Independence from France was declared in 841 after a rebellion of Duke Nominoe who refused to accept as his suzerain, king Charles, the Bald. After a five year conflict, France recognized Brittany as a ducal state in 846 and as a kingdom in 851. Following Alan II's death in 952, Brittany is disputed between the Houses of Nantes and Rennes, until 990, when count Conan of Rennes pacifies the duchy under his control.

Dukes of Brittany

Houses of Vannes and Rennes

• Nominoe of Vannes (r.841-851; 826-841, as a vassal of France)
• Erispoe of Vannes (r.851-857)
• Saloman (r.857-874)
• Pasquitan of Vannes (r.874-877)
• Gurvand of Rennes (r.874-877)
• Judicael of Rennes (r.877-888)
• Alan I of Vannes, the Great (r.877-903)
  • No duke between 903 and 936
• Alan II of Vannes (r.936-952)
• Drogo (r.952-958)
• Hoel of Vannes (r.960-980)
• Guerech (r.980-988)
• Alan (r.988-990)

House of Rennes (Brittany united)

• Conan I of Rennes (r.990-992)
• Geoffrey I of Rennes (r.992-1008)
• Alan III of Rennes (r.1008-1040)
• Conan II of Rennes (r.1040-1066)

House of Cornwall

• Hoel II of Cornwall (r.1066-1084) in right of his wife
• Alan IV of Cornwall (r.1084-1112)
• Conan III of Cornwall (r.1112-1148)
• Hoel III of Cornwall (r.1148-1156)
  • with Eudes, viscount of Porhoet

Rennes restaured, Plantagenet and Thouars

• Conan IV of Rennes, the young (r.1156-1166)
• Geoffrey Plantagenet (r.1181(?)-1186)
• Constance of Brittany (r.1186-1196)
• Arthur I Plantagenet (r.1196-1203)
• Guy of Thouars (r.1203-1206)
• king Philip Augustus of France (r.1206-1213) as regent for Alix of Brittany)

House of Dreux

• Peter I of Dreux (r.1213-1237) in right of his wife Alix and as regent of his son
• John I, the Red (r.1237-1286)
• John II (r.1286-1305)
• Arthur II (r.1305-1316)
• John III, the Good (r.1312-1341)

Breton War of Succession (1341-1364)

• Charles of Blois and Joanna of Dreux (r.1341-1364)
  • vs. Dukes John IV and John V

House of Montfort

The cadet branch of the House of Dreux

• John IV of Montfort (r.1341-1345)
• John V, the Conqueror (r.1364-1399)
• John VI (r.1399-1442)
• Francis I (r.1442-1450)
• Peter II (r.1450-1457)
• Arthur III (r.1457-1458)
• Francis II (r.1458-1488)
• Anne of Brittany (r.1488-1514)
• Claudia of France (r.1514-1524)
• François (III), dauphin of France (r.1524-1532), son of Francis I of France and Claudia of France

See also: Brittany ? Dukes of Brittany family tree