| Male Jacob I van Heurne, Graaf |
| Birth | Abt 1420 | |
| Death | 1488 | |
| Burial | ||
| Marriage | ||
| Father | Willem VIII van Horne | F577 Group Sheet | |
| Mother | Jeanne de Montigny | F577 Group Sheet | |
| Male + Jacob II van Heurne, Graaf |
| Birth | 1450 | |
| Death | 1502 | |
| Burial | ||
| Spouse | Jonkvrouw van Kerckem | F575 | |
| Marriage | ||