| Father | Otto 1st (IV) van Bentheim Count of Bentheim ( - ) |
| Mother | Adelheid van Cuyk-Arnsberg (1143 - 1200) |
| Sibling | Agniese van Bentheim (1155 - ) |
| Sibling | Gerarda Maria von Nemenburg (1200 - ) |
| Sibling | Boudewijn Otto Dirk , graaf, burggraaf[KT] (I) van Benthem van MALSEN ( - 1248) |
| Sibling | Marina van Bentheim van Holland ( - ) |
| Sibling | OTTO OF BLENTHEIM ( - 1217) |
| Sibling | Marina von Bentheim (1175 - 1250) |
| Sibling | Countess Elizabeth of Tecklenburg ( - ) |
| Sibling | Erzbischof Engelbert 1st. von Berg Altena Isenburg (1157 - 1220) |
| Sibling | Dirk van Altena (1156 - ) |