Iven was born about 1249, the son of unknown parents. The place is not known.
His wife is not known. They were married, but the date and place have not been found. Their two known children were Hartwig (?-?) and Iven II (c1306->1359).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1249 |
|