Bertha of Blois, was a Duchess consort of Brittany and a countess consort of Maine. Wikipedia
Born: 1005
Died: 1080 (age 75 years)
Children: Conan II, Duke of Brittany, Hawise, Duchess of Brittany, and Paula of Maine
Parents: Odo II, Count of Blois
Spouse: Hugh IV, Count of Maine (m. 1046–1051) and Alan III, Duke of Brittany (m. 1018–1040)
Great-grandparents: Theobald I, Count of Blois, Matilda of France, Luitgarde of Vermandois, and more
Great grandchildren: Conan III, Duke of Brittany, Brian Fitz Count, Hawise of Brittany, and more