7: Hrefna Dansdóttir -New Name (NP)

Hrefna is a feminine given name with one instance in Landnámabók in Geirr Bassi (The Old Norse Name, p. 11.
Danr is a masculine given name from the same source (p. 9) where it is coded as from the Heimskringla.
The formation of the patronymic is based on p. 17 also in The Old Norse Name.