[4] In 1266, Alexander III pacifically secured the Hebrides and Mann from Hákon's son and successor, Magnús Hákonarson, King of Norway (died 1280), by way of the Treaty of Perth.
Four such bailiffs or justiciars are known to have been appointed to govern the island: a certain "Godredus Mac Mares"; Alan, illegitimate son of Thomas fitz Roland, Earl of Atholl (died 1231); a certain "Mauricius Okarefair" / "Mauricio Acarsan"; and Reginald, the king's chaplain.
[9][10] Alexander III, King of Scotland quickly responded by sending a great fleet, drawn from the Hebrides and Galloway, to invade the island and restore Scottish royal authority.
[11] The identities of these men suggest that the Scottish force was composed of a small component of heavily armed knights, a contingent of infantry troops levied from the common army of Galloway, and a fleet of galleys gathered from the Hebrides.
[17][note 3] Although Guðrøðr may have died in the defeat,[18] the continuation of Historia rerum Anglicarum reports that he and his wife managed to escape the carnage on Mann, and fled to Wales.