Eustace I Comte de BOULOGNE
Eustace I Comte de was born about 1087 in Boulogne, Lorraine, France.  He died in 1047.

 Mahaut LOUVAIN
Mahaut was born in 0984 in Louvain, Brabant, Belgium.

 Eustace II Comte de BOULOGNE
Eustace II Comte de was born in 1030 in Boulogne, Picardy, France.