Isabelle de Meulan French noble (1148–1220) Parents Agnes of Montfort Waleran de Beaumont, 1st Earl of Worcester Children Juhel III de Mayenne Avoise de Craon Amaury I de Craon Clémence de Mayenne Siblings Amaury I de Meulan Robert de Beaumont, Count of Meulan Roger de Meulan Partners Geoffroy III de Mayenne Maurice II de Craon