Thora Sigurdsdóttir, Unsourced

It seems to be a common Geni opinion that Thora, daughter of Sigurd Snake-in-the-eye and Heluna (Bleju), princess of England, married Ragnvald Heidumhære of Vestfold and got the daughter Asdis (Ascrida), who later married Eystein Glumra.

None of these facts are known to be documented outside of genealogical speculation, and her parents are therefore set as unknown.

All other parents, children and husbands are not even common Geni opinion, and will be deleted eventually - they may possibly be the result of bad mergers with other Thoras.

There is a different Thora that is slightly more documented: The "Eyrbyggja saga" claims that the mother of Ingjald Helgasson was the daughter of Sigurd Snake-In-The-Eye, and named Thora.

See http://en.wikipedia.org/wiki/Ingjald_Helgasson