John III, Duke of Brittany

Parents

• Marie, Viscountess of Limoges
• Arthur II, Duke of Brittany

Children

Siblings

• Beatrice of Brittany
• John IV, Duke of Brittany
• Guy of Penthièvre
• Alice of Brittany
• Pierre de Bretagne
• Marie de Montfort
• Jeanne de Dreux-Bretagne, Dame de Nogent-le-Rotrou
• Blanche de Montfort

Partners

• Isabelle of Valois, Duchess of Brittany
• Isabella of Castile, Queen of Aragon
• Joan of Savoy