His father, Hrafn, on the other hand was a direct descendant of Skalla-Grímr father of skald and Viking Egill Skallagrímsson. With the birth of  Jón korpur Hrafnsson the warring clans of the Fairhair dynasty and Skalla-Grímr were genetically united in Iceland.
Jón korpur Hrafnsson (born 1255) (Anglicized John "the raven" son of Raven) son of  Þuríður Sturludóttir (born  1228) and Hrafn Oddsson (born 1225). His mother, Þuríður, was a direct descendant of Þóra Magnúsdóttir daughter of Magnus III of Norway a direct descendant of Harald Fairhair (Haraldur hárfagri) founder of the Fairhair dynasty the first royal dynasty of the united Norway, and a branch of the Ynglings (also see Ynglinga saga).