Cecilia MacWilliam Peerage person ID=107728 (1138–1189) Parents Alice le Meschin, Lady of Skipton William fitz Duncan Children Hawise of Aumale Siblings Amabel MacWilliam, Lady of Copeland Alice de Rumilly, Lady of Allerdale William MacWilliam, Lord of Egremont Donald MacWilliam Donald FitzDuncan Partners William le Gros, 1st Earl of Albemarle