Constance de Bretagne

Peerage person ID=40491 (d. 1148)

Parents

• Conan III, Duke of Brittany
• Matilda FitzRoy, Duchess of Brittany

Children

• Mathilde de Mayenne

Siblings

• Bertha, Duchess of Brittany
• Hoel, Count of Nantes

Partners

• Geoffroy III de Mayenne