 The Chronicle of Lanercost states that a Norwegian fleet sailed down the west coast of Scotland in 1230 with a certain Óspakr <unk> ( d . 1230 ) , who had been appointed King of the Isles by the King of Norway ; also amongst the fleet were Óláfr and Guðrøðr . The <unk> version of Hákonar saga Hákonarsonar , the most authoritative version of the saga , gives a much more illustrative account ; although it does not specifically state that Guðrøðr travelled with the fleet from Norway . The saga states that in the summer before the fleet left Norway , news of warring in the Isles reached the Norwegian king , Hákon Hákonarson ( d . 1263 ) . Óláfr is described as a faithful vassal of the Norwegian king , while two Hebridean noblemen , Donnchad and Dubgall — both sons of Dubgall mac Somairle ( fl . 1175 ) — are described as unfaithful . The saga relates how the Norwegian king summoned an assembly that winter , appointed Óspakr King of the Isles , and decided upon a plan to give Óspakr a military force to command in the Isles . 
