Nielsen Hayden genealogy
Family: Eustace I / Mathilde of Louvain (F1213)
Baldwin ( -1024) 
|
| Lambert I "The Bearded" (950-1015)
|
Gerberga of Lorraine ( -1018)
|
Lambert II (991-1062)  |
| Mathilde of Louvain (993- )
|
| Eustace I (995-1049)
|
| Eustache II of Boulogne ( -1080) |
| Lambert II of Boulogne ( -1054) |
| Gerberge de Boulogne ( -1060) |