Jan was born before 1370, the son of unknown parents. The place is not known.
His wife was Mathilde Estor. They were married, but the date and place have not been found. Their only known child was Jan II (?-?).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | BEF 1370 |
|
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | heer van Rotselaer | |||||
| Nobility Title | sénéchal de Brabant |