Constance, duchess of Brittany Breton noblewoman, Duchess of Brittany, Countess of Richmond (1161–1201) Parents Margaret of Huntingdon, Duchess of Brittany Conan IV, Duke of Brittany Children Eleanor, Fair Maid of Brittany Margaret of Thouars Matilda of Brittany Catherine of Thouars Arthur I Alix, duchess of Brittany Siblings Henry de Bohun, 1st Earl of Hereford William de Washington Partners Guy of Thouars Geoffrey II Ranulf de Blondeville, 6th Earl of Chester
