Eustache I Count of Boulogne
Eustache I Count of was born about 1004 in Boulogne-sur-Mer, Nord-Pas-de-Calais, France.  He died in 1049 in Boulogne-sur-Mer, Nord-Pas-de-Calais, France.

 Mahaut (Maud) of Louvain
Mahaut (Maud) of was born about 1004 in Louvain, Brabant, Belgium.  Mahaut (Maud) of is no longer alive.

 Gerberge of Boulogne
Gerberge of was born about 1020 in Boulogne-sur-Mer, Nord-Pas-de-Calais, France.  She died in 1049.

 Lambert of Boulogne , Count of Lens
Lambert of was born about 1022 in Boulogne-sur-Mer, Nord-Pas-de-Calais, France.  He died in 1054 in Slain-battle of Lille at Bataille de Lille, Flanders.

 Eustache II Count of Boulogne
Eustache II Count of was born about 1030 in Boulogne-sur-Mer, Nord-Pas-de-Calais, France.  He died about 1080 in Boulogne-sur-Mer, Nord-Pas-de-Calais, France.  He was buried in Companion of William I at Battle of Hastings.