Mary of Waltham, duchess of Brittany (died 1361)

Mary of Waltham

Duchess of Brittany from 1361 to 1362

Mary of Waltham, Duchess of Brittany, was a daughter of King Edward III of England and Philippa of Hainault and was the wife of John IV, Duke of Brittany, known in England as "John V" and "The Conqueror". Mary was made a Lady of the Garter in 1378.