Bertha of Blois Duchess consort of Brittany (1005–1080) Parents Ermengarde d'Auvergne Odo II, Count of Blois Children Conan II, Duke of Brittany Herbert II, Count of Maine Margaret de Maine Hawise, Duchess of Brittany Paula of Maine Siblings Theobald III Stephen II of Troyes Almodis Partners Hugh IV, Count of Maine Alan III, Duke of Brittany