Hartmann was born before 1237, the son of unknown parents. The place is not known.
He died on 04 OCT 1280. The place is not known.
His wife was Elisabeth von Eselsberg, who he married in BEF 1240. The place has not been found. Their only known child was Agnes (?-1328).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | BEF 1237 |
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| Death | 4 OCT 1280 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | graf von Grüningen |