| Male Willem VIII van Horne |
| Birth | ||
| Death | 1433 | |
| Burial | ||
| Marriage | ||
| Father | Willem VII van Horne | F578 Group Sheet | |
| Mother | Johanna van Loon Heinsberg | F578 Group Sheet | |
| Male + Jacob I van Heurne, Graaf |
| Birth | Abt 1420 | |
| Death | 1488 | |
| Burial | ||
| Spouse | Johanna van Meurs | F576 | |
| Marriage | ||