Johann was the son of unknown parents. The date and place of his birth have not been found.
He died in 1562. The place is not known.
His wife was Agnes van Bentheim-Steinfurt. They were married, but the date and place have not been found. Their only known child was Irmgard (1551-1584).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Death | 1562 |
|
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | graf von Rietberg |