[1] According to Sturluson's Heimskringla saga, Ragnhild was the daughter of the Jutish king, Eirikr.
She had a son, Eirik Bloodaxe, by Harald, who left all his previous wives and concubines for her.
[2] Historian Claus Krag, proponent of a revisionist view that Harald Fairhair was a powerful ruler of Vestlandet, rather than the king of all Norway, has questioned the story of Ragnhild the Mighty.
He notes that no other sources mention her supposed father, King Eirik of Jutland, and suggests that at least this part of the narrative is an invention by Sturluson (or his source) to legitimize Eirik Bloodaxe's name and royal claim.
Eirik Bloodaxe is widely attested to have had a daughter called Ragnhild.