Halfdan was born about 0800, 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 only known child was Hrolf Nefja (c0823-?).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 0800 |
|
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | järl av Vestfold |