Cadet branch of the House of Dreux-Brittany
- Coat of Arms
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
- Cadet Branches
House of d'Avaugour
Counts of Vertus and Goëlo
2nd House of Avaugour
Issued from François, illegitimate son of Francis II of Brittany
- Personal Arms
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
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