House of Montfort-Brittany
Cadet branch of the House of Dreux-Brittany
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House of Montfort-Brittany
Dukes of Brittany
Counts of Montfort-l'Amaury -
House of Montfort-Brittany
as Earls of Richmond
After 1399 the title unrecognized by Kings of England
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House of d'Avaugour
Counts of Vertus and Goëlo
2nd House of Avaugour
Issued from François, illegitimate son of Francis II of Brittany
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John of Montfort
Count of Montfort-l'Amaury
Eldest son of Arthur II of Brittany from his 2nd marriage
Progenitor of the Montfort branch -
John IV of Brittany
as Count of Montfort
and Earl of Richmond
Eldest son of John of Montfort -
Arthur III of Brittany
as Earl of Richmond
and Constable of France
Younger son of John IV of Brittany -
Richard d'Étampes
Count of Vertus and Étampes
Youngest son of John IV of Brittany -
Richard d'Étampes
Count of Vertus and Étampes
Alternative arms variant -
Pierre II of Brittany
as Count of Guingamp
2nd son of John V of Brittany -
Francis II of Brittany
as Count of Étampes
Son of Richard d'Étampes -
Anne of Brittany
Duchess of Brittany
Countess of Étampes
Queen consort of France
Only surviving child and heir of Francis II of Brittany