| Partner: | Ukendt de PONTHIEU ( - ) | |
| Partner: | (unknown) | |
| Children: | Mahaut de CREQUY (c. 880-930) | |
| Name: | Ukendt de PONTHIEU | |
| Sex: | Male | |
| Father: | - | |
| Mother: | - | |
| Name: | Mahaut de CREQUY | |
| Sex: | Female | |
| Spouse: | Adelolf of BOULOGNE (c. 890-933) | |
| Birth | c. 0880 | |
| Death | 0930 (age 49-50) | |