page_title: Guðrøðr Óláfsson
section_title: Contested kingship
hierarchical_section_title: Guðrøðr Óláfsson / Contested kingship
caption_attribution_description: English: An excerpt from folio 16v of British Library MS Domitian A VII (Durham Liber vitae) showing the name of Dubgall mac Somairle (died 1175×).
context_page_description: Guðrøðr Óláfsson was a twelfth-century ruler of the kingdoms of Dublin and the Isles. Guðrøðr was a son of Óláfr Guðrøðarson, King of the Isles and Affraic, daughter of Fergus, Lord of Galloway. Throughout his career, Guðrøðr battled rival claimants to the throne, permanently losing about half of his realm to a rival dynasty in the process. Although dethroned for nearly a decade, Guðrøðr clawed his way back to regain control of a partitioned kingdom, and proceeded to project power into Ireland. Although originally opposed to the English invasion of Ireland, Guðrøðr adeptly recognised the English ascendancy in the Irish Sea region and aligned himself with the English. All later kings of the Crovan dynasty descended from Guðrøðr.
  In the last year of his father's reign, Guðrøðr was absent at the court of Ingi Haraldsson, King of Norway, forging closer ties with the Kingdom of Norway. When Óláfr was assassinated by rival members of the Crovan dynasty in 1153, Guðrøðr returned to the Isles, overthrew his usurping cousins, and seized the throne for himself.
context_section_description: Midway through the twelfth-century, Muirchertach Mac Lochlainn, King of Cenél nEógain pressed forth to claim to the high-kingship of Ireland, an office then held by the elderly Toirrdelbach Ua Conchobair, King of Connacht. In 1154, the forces of Toirrdelbach and Muirchertach met in a major conflict fought off the Inishowen coast, in what was perhaps one of the greatest naval battles of the twelfth century. According to the seventeenth-century Annals of the Four Masters, Muirchertach's maritime forces were mercenaries drawn from Galloway, Arran, Kintyre, Mann, and "the territories of Scotland". This record appears to be evidence that Guðrøðr, Fergus, and perhaps Somairle, provided ships to Muirchertach's cause. Although Toirrdelbach's forces obtained a narrow victory, his northern maritime power seems to have been virtually nullified by the severity of the contest, and Muirchertach soon after marched on Dublin, gained overlordship over the Dubliners, and effectively secured himself the high-kingship of Ireland for himself.
  The defeat of forces drawn from the Isles, and Muirchertach's subsequent spread of power into Dublin, may have had severe repercussions concerning Guðrøðr's career. In 1155 or 1156, the Chronicle of Mann reveals that Somairle conducted a coup against Guðrøðr, specifying that Þorfinnr Óttarsson, one of the leading men of the Isles, produced Somairle's son, Dubgall, as a replacement to Guðrøðr's rule. Somairle's stratagem does not appear to have received unanimous support, however, as the chronicle specifies that the leading Islesmen were made to render pledges and surrender hostages unto him, and that one such chieftain alerted Guðrøðr of Somairle's treachery.
  Late in 1156, on the night of 5/6 January, Somairle and Guðrøðr finally clashed in a bloody but inconclusive sea-battle. According to the chronicle, Somairle's fleet numbered eighty ships, and when the fighting concluded, the feuding brothers-in-law divided the Kingdom of the Isles between themselves. Although the precise partitioning is unrecorded and uncertain, the allotment of lands seemingly held by Somairle's descendants in the twelfth- and thirteenth centuries could be evidence that he and his son gained the southern-most islands of the Hebrides, whilst Guðrøðr retained the northern-most. Two years later the chronicle reveals that Somairle, with a fleet of fifty-three ships, attacked Mann and drove Guðrøðr from the kingship into exile. According to the thirteenth-century Orkneyinga saga, the contemporary Orcadian warlord Sveinn Ásleifarson had connections in the Isles, and overcame Somairle in battle at some point in the twelfth century. Although this source's account of Sveinn and Somairle is clearly somewhat garbled, it could be evidence that Sveinn aided Guðrøðr in his struggle against Somairle. With Guðrøðr gone, it appears that either Dubgall or Somairle became King of the Isles. Although the young Dubgall may well have been the nominal monarch, the chronicle makes it clear that it was Somairle who possessed the real power. Certainly, Irish sources regarded Somairle as king by the end of his career. The reason why the Islesmen specifically sought Dubgall as their ruler instead of Somairle is unknown. Evidently, Somairle was somehow an unacceptable candidate, and it is possible that Ragnhildr's royal ancestry lent credibility to Dubgall that Somairle lacked himself.
caption: Dubgall's name as it appears on folio 16v of British Library Cotton Domitian A VII (the Durham Liber vitae): "Dunegal filius Sumerledi".[87]
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