Gall-Gael. Not content, however, with his partial success, the lord of the Oirir-Gael aimed at the possession of the remainder, [Sidenote: A. D. 1158.] and in the following year, landing in Man, he completed his conquest by the reduction of that island, Godfrey flying before his sister’s husband, and passing the next seven years in exile at the court of Norway.[383] The defection of Thorfin from Godfrey Olaveson was, probably, as fatal in its consequences to the sons of Mac Heth as it was advantageous to their powerful kinsman; for in the very year in which Somarled, relinquishing his attacks upon Scotland, turned all his energies towards acquiring the kingdom of the Isles, Donald Mac Malcolm was captured in Galloway, [Sidenote: A. D. 1156.] and sent to share his father’s imprisonment in Roxburgh Castle.[384] Three and twenty years of hopeless captivity must have bowed the spirit of the forlorn prisoner, and despairing of success when his son became the partner of his dungeon, Malcolm Mac Heth came to terms with his enemies. [Sidenote: A. D. 1157.] No account remains of the nature of the transaction by which he at length repurchased his liberty; of the claims which he relinquished, or of the concessions extorted by his opponents. Once only his name occurs in the chartularies of the period, when it appears amongst the signatures of the leading nobles who were in attendance at the court of their youthful sovereign at Dunfermlyn; and then, with one solitary and insignificant exception, the name of the once mighty leaders of the ancient race of Moray disappears for ever from the page of history.[385]