| Father | Arnould VI DE GAVRE (1360 - 1418) |
| Mother | Isabelle DE GHISTELLES (1360 - 1435) |
| Sibling | Catherine DE GAVRE DE ESCORNAUX (1400 - ) |
| Sibling | Arnould (3) DE GAVRE (1375 - ) |
| Sibling | Henri DE GAVRE (1381 - 1415) |
| Sibling | Philippe DE GAVRE (1382 - 1415) |
| Sibling | Jean DE GAVRE (1384 - 1439) |
| Sibling | Guillaume DE GAVRE (1385 - 1454) |
| Sibling | Marguerite DE GAVRE (1387 - 1411) |
| Sibling | Gertrude DE GAVRE (1388 - ) |
| Sibling | Gerard DE GAVRE (1389 - ) |
| Sibling | Jeanne DE GAVRE (1389 - ) |
| Sibling | Pierre DE GAVRE (1391 - ) |
| Sibling | Guillaune (2) DE GAVRE (1395 - ) |
| Sibling | Roger DE GAVRE (1397 - 1456) |