Eustace I, Count of Boulogne Count of Boulogne from 1024 to 1047 (0989–1049) Parents Adelina of Holland Baldwin II, Count of Boulogne Children Geoffroy de Boulogne John de Fiennes Gerberga of Boulogne Eustace II, Count of Boulogne Lambert II, Count of Lens Baldwin I of Jerusalem Siblings Hugh II, Count of Ponthieu Partners Matilda of Louvain