Johan was the son of unknown parents. The date and place of his birth have not been found.
He died about 1360. The place is not known.
He had two marriages/partners. His first wife was Beatrix van Grimbergen. They were married, but the date and place have not been found. Their only known child was Margaretha (c1320-?).
His second wife was Margaretha van Dudzeele, who he married in ABT 1335. The place has not been found. Their only known child was Jan II (c1343-c1400).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Death | ABT 1360 |
|
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | heer van Grimbergen, Polaare en Gruuthuyse |