Gerhard was born in 1231/32, the son of unknown parents. The place is not known.
He died on 21 DEC 1290 in Itzehoe.
He had two marriages/partners. His first wife was Elisabeth von Mecklenburg, who he married in ABT 1249. The place has not been found. Their seven known children were Liutgard (c1251->1289), Gerhard II (1254-1312), Adolf VI (1256-1315), Heinrich I (c1258-1304), Hedwig (<1264-1324), Elisabeth (?-c1284) and Mechtild (?-?).
His second wife was Alessine di Montferrato, who he married in 1280. The place has not been found. They had no known children.
| Event | Date | Details | Source | Multimedia | Notes | ||
|---|---|---|---|---|---|---|---|
| Birth | 1231/32 |
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| Death | 21 DEC 1290 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | FROM 1239 TO 1290 | graf von Holstein-Itzehoe |