[6] What is known for sure is that, before the end of the century, Magnús Óláfsson, King of Norway (died 1103) led a marauding fleet from Scandinavia into the Isles, seized control of the kingdom, and held power in the Irish Sea region until his death in 1103.

[10] Despite the uncertainty surrounding the inception of his reign, the chronicle reveals that Lǫgmaðr faced continued opposition from within his own family, in the form of an ongoing rebellion by his brother, Haraldr.

[19] The chronicle credits Domnall with an oppressive three-year reign that ended when the leading Islesmen revolted against him, and drove him from the kingdom back to Ireland.

But meanwhile he with his associates abandoned himself to robbery and banquetting; violated the chastity of women and girls; and devoted his attention to the other pleasures and allurements of the flesh.

And when this had been reported to the chieftains of the islands, when they had already assembled together to appoint him king, they were fired with excessive rage, and hastened towards him; and coming upon him by night, they burned down the house in which he was; and annihilated him and all his men, some with the sword, and some in the flames.

Ingimundr's rationale for seating himself upon an island (Lewis and Harris) on the edge of the kingdom may have been due to his inability to gain any authority on Mann itself.

[10][note 3] The chronicle reveals that civil war erupted there the following year,[33] and the twelfth-century Historia ecclesiastica indicates that Mann was devastated to point of being a virtual desert by the time Magnús appeared on the scene.