Hartwig was born about 0950, the son of unknown parents. The place is not known.
His wife was Wichberg. They were married, but the date and place have not been found. Their only known child was Friedrich I (c0980-c1020).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 0950 |
|
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | graf von Isengau |