in shooting arrows. His brothers loathed him greatly, and Amlaib the most; the causes of the hatred are not told because of their length. The two brothers, Amlaib and Imar, went to consult about the matter of the young lad Óisle; although they had hidden reasons for killing him, they did not bring these up, but instead they brought up other causes for which they ought to kill him; and afterwards they decided to kill him. When Óisle visited Amlaib the former said: 'Brother, if your wife, i.e. the daughter of Cináed, does not love you, why not give her to me, and whatever you have lost by her, I shall give to you.' When Amlaib heard that, he was seized with great jealousy, and he drew his sword, and struck it into the head of Óisle, his brother, so that he killed him. After that all rose up to fight each other (i.e. the followers of the king, Amlaib, and the followers of the brother who had been killed there); then there were trumpets and battle-cries on both sides. In 870 Dumbarton was besieged by Amlaib Conung and Ímar, "the two kings of the Northmen", who "returned to Dublin from Britain" the following year with numerous captives. Gofraid may have been succeeded briefly by Ímar who also died in 873. His death is recorded in the Annals of Ulster: Imhar rex Nordmannorum totius Hibernię & Brittanie uitam finiuit (Ímar king of the Norwegian Vikings of the whole of Ireland and Britain ended his life.) Amlaíb died either the following year campaigning in Scotland,Ó Corráin (1998), p. 35. or perhaps prior to 872. The matter of Gofraid's descendants and antecedents is subject to some ambiguity based on differing interpretations of these siblings and their connections to legendary figures from the Norse sagas. Ímar The descendants of Ímar include his grandson Ragnall ua Ímair, who was a ruler of Northumbria and Mann (and who may have been the historical prototype of Rognvald Eysteinsson of the Orkneyinga Saga), Sitric Cáech (d. 927) who was a King of Dublin and of York, his successor Amlaíb Cuarán and probably the later Crovan dynasty of Mann and thus of Clann Somhairle, the rulers of Argyll and their descendants the Clan Donald Lords of the Isles. Ímar has also been identified as the saga character Ivar the Boneless.Ó Corráin (1979), p. 296. The latter is referred