| Male Gerard I van Horne |
| Birth | Abt 1270 | |
| Death | 1330 | |
| Burial | Brussel |
|
| Marriage | ||
| Other Spouse | Ermgard van Kleef | F2550 | |
| Marriage | ||
| Father | Willem II van Horne | F2548 Group Sheet | |
| Mother | Agnes [?] van Perwijs (van Leuven) | F2548 Group Sheet | |
| Female Johanna van Leuven - Gaesbeek |
| Birth | Abt 1270 | |
| Death | Feb 1308 | |
| Burial | Brussel (Carmelieten) |
|
| Other Spouse | Gerard van Horne | F582 | |
| Marriage | ||
| Father | Hendrik van Leuven Gaasbeek | F583 Group Sheet | |
| Mother | Isabella van Beveren | F583 Group Sheet | |
| Male + Willem V van Horne en Gaesbeek |
| Birth | 1297 | |
| Death | 25 Aug 1343 | |
| Burial | ||
| Spouse | Elisabeth van Cleeff | F581 | |
| Marriage | ||
| Spouse | Oda van Putten en Strijen | F2540 | |
| Marriage | ||