Stamboom Marijnissen
Willem I van Ponthieu
- 1171(Notes: You may have to scroll down or right to see chart.)
| Jan I van Ponthieu | |
| D: | 30 Jun 1191 |
| Acre | |
| Alix de Ponthieu | |
| D: | Aft 1241 |
| Thomas de Saint-val?ery | |
| D: | Bef 1220 |
| Beatrix de Saint-pol | |
| D: | Aft 1201 |
| Guy de Ponthieu | |
| D: | Between 1205 and 1218 |
| Gwijde Ii van Ponthieu | |
| D: | 1147 |
| Efese | |
| Ida | |
| D: | Aft 1177 |
| Robert de Garennes | |
| D: | Aft 1170 |
| Jean de Ponthieu | |
| D: | 1191 |
| Willem I van Ponthieu | |
| D: | 30 Jun 1171 |
| Helie van Bourgondi?e | |
| B: | Abt 1080 |
| D: | 28 Feb 1141 |