| Husband: | Eustace I + (c. 1004- ) | |
| Wife: | Mathilda + of LOUVAIN (1006-1096) | |
| Children: | Sybille + of BOULOGNE (1015- ) | |
| Name: | Eustace I + | |
| Sex: | Male | |
| Father: | - | |
| Mother: | - | |
| Birth | 1004 (est) | Boulogne-sur-Mer, Pas-de-Calais, France |
| Occupation | Count of Boulogne | |
| Death | Flanders, Belgium | |
| Name: | Mathilda + of LOUVAIN | |
| Sex: | Female | |
| Father: | - | |
| Mother: | - | |
| Birth | 1006 | |
| Death | 1096 (age 89-90) | Boulogne-sur-Mer, Pas-de-Calais, France |
Sybille + of BOULOGNE
| Name: | Sybille + of BOULOGNE | |
| Sex: | Female | |
| Spouse: | Guy + of DAMPIERRE (1010-1050) | |
| Birth | 1015 | France |
| Death | France | |