MaleGuillaume I de PONTHIEU, Count de Montreuil |
| Birth | Abt 915 | Ponthieu, FRANCE |
| Death | 980 | |
| Burial | ||
| Marriage | ||
| Other Spouse | Mathilde de GAMACHES | F9744 | |
| Marriage | ||
| Father | Herbouin II ou Hélouin de PONTHIEU, Count | F9745 Group Sheet | |
| Mother | Noelle de DAMMARTIN | F9745 Group Sheet | |
FemaleMaude [Vlaanderen] de SAINT POL, DE ST. POL SUR MER (L) DE THEROUENNE |
| Birth | Abt 915 | Therouenne, Artois/Pas de Calais, France |
| Death | Yes, date unknown | |
| Burial | ||
| Father | ||
| Mother | ||