| Guy I Count of Montreuil |
De Ponthieu |
* 1028 Ponthieu, Somme, Picardie, France + 1100 Montreuil, Pas-de-Calais, Nord-Pas-de-Calais, France |
de Ponthieu - de Aumale |
|
| Marie de Boulogne of Blois (Princess) of |
England |
* 1136 Blois, Loir-et-Cher, Centre, France + 1182 Montreuil, Pas-de-Calais, Nord-Pas-de-Calais, France |
England - Boulogne |
|
| Bertha |
Gerulfing |
* 1058 Vlaardingen, Zuid-Holland, Netherlands + 1094 Montreuil, Pas-de-Calais, Nord-Pas-de-Calais, France |
Gerulfing - Billung |
|
| Bertha (Countess) of |
Holland |
* 1054 Vlaardingen, Zuid-Holland, Netherlands + 1094 Montreuil, Pas-de-Calais, Nord-Pas-de-Calais, France |
Holland - Saxony |
|
