 According to Norse tradition, Ívarr was a son of the semi-legendary Danish warlord Ragnar Loðbrok.The "Fragmentary Annals of Ireland" provide an alternative genealogy, but one which dates from the 11th century – and therefore equally suspect.According to another entry in the "Fragmentary Annals", Ímar and Auisle were Amlaíb's brothers, all three being sons of Gofraid mac Ragnaill the King of Laithlind.