See also
| Partner: | Halfdan HARALDSSON (c. 760-810) | |
| Partner: | (unknown) | |
| Children: | Harald 'Klak' Halfdansson of JUTLAND (c. 800-c. 850) | |
| Name: | Halfdan HARALDSSON | |
| Sex: | Male | |
| Father: | Harold Eysteinsson of HAITHABU (c. 745-c. 805) | |
| Mother: | - | |
| Birth | c. 0760 | Hedeby, Jutland, Denmark |
| Death | 0810 (age 49-50) | Walcheran, Zeeland, Netherlands (killed in battle) |
| Name: | Harald 'Klak' Halfdansson of JUTLAND | |
| Sex: | Male | |
| Spouse: | Sigrid Helgesdotter of RINGERIKE (c. 815- ) | |
| Birth | c. 0800 | Hedeby, Jutland, Denmark |
| Occupation | King in Jutland | |
| Death | c. 0850 (age 49-50) | Walcheran, Zeeland, Netherlands |