| Father | Willem III D' AVESNES [COUNT OF HAINAU (1280 - 1337) |
| Mother | Jeanne De VALOIS [COUNTESS OF HAI (1294 - 1342) |
| Sibling | Sibylla COUNTESS Of Holland (1310 - ) |
| Sibling | Margaretha COUNTESS Of Holland (1311 - ) |
| Sibling | Philippa COUNTESS Of HAINAULT (HOLLAN [QUEEN OF ENGLAN (1312 - ) |
| Sibling | Johanna, COUNTESS Of Holland (1315 - 1374) |
| Sibling | Willem IV Count Holland (1317 - ) |
| Sibling | Agnes, COUNTESS Of Holland (1320 - 1327) |
| Sibling | Louis, Count Of Holland (1325 - 1328) |
| Sibling | Elisabeth Or Isabella, Holland (1327 - 1361) |