As of 18 August 2010, you must register to edit pages on Rodovid (except Rodovid Engine).

From Rodovid EN

It appears that the name Halvdan may be a permutation of a tribal designation (Hephtalite)

Lineage "Hephtalite" contains 3 people

Showing below up to 3 results starting with #1.
View (previous 50) (next 50) (20 | 50 | 100 | 250 | 500).

1. ♂ Dag Mikilati [Hephtalite]
2. ♂ Helge Halfdansson (Hasdinga) [Hephtalite]
3. ♂ Saebald ? (Izzat-baig) [Hephtalite]

View (previous 50) (next 50) (20 | 50 | 100 | 250 | 500).