Of the events which brought about this great change, authentic history tells us nothing—of the fact there can be no doubt; and the question arises of how the Gaelic language originated in the undalriadic part of the Highlands. Prior to this date, it was exclusively occupied by people of the race of the Cruithne, first Pagan under native Magi, then Christian, and for 150 years under clergy of Scottish race, who were, however, driven out in the year 717. Either then these Cruithne spoke a Gaelic dialect, or, if they spoke a different language, we must suppose that the language of Gaelic Dalriada had, subsequently to the ninth century, spread, with the rule of a Scottish king, over the whole of the Highlands not embraced in that limited territory. We have no materials for determining this question. The latter supposition has always been assumed by the Irish historians, but without proof; and they have never attempted to account for the entire disappearance of the previous language, and the expulsion of the previous population of so extensive a district, so mountainous and inaccessible in its character, and so tenacious of the language of its early inhabitants in its topography, which such a theory involves.
If the first supposition be the correct one, and the Cruithne spoke a Gaelic dialect, we can easily understand how, though originally different from the Gaelic dialect of Dalriada, it may, by the influence of the written language, and its vernacular use by their clergy for so long a period, have become modified and assimilated to it; and if, as is probable, their dialect had been so far cultivated, as the existence of popular poetry, the first literature of a rude people, was calculated to effect, the influence of the clergy would probably be antagonistic to such literature, and be employed to suppress it; and the language in which it was conveyed might remain for some time in opposition to the written language, as a vernacular and popular form of the language, the type and symbol of the anti-Christian party, till it was finally amalgamated with, or assimilated to it as the party itself was ultimately overcome.
But another event had taken place during this obscure period, extending to little more than a century, and in which the union of the two populations under a Scottish royal race had been effected, which must have interposed an obstacle to the spread of an influence from Ireland into the nondalriadic portion of the Highlands, and greatly counteracted that arising from a dominant royal family of Scottish descent. This was the destruction of Iona by the Scandinavian pirates, and their subsequent occupation of the Western Isles and western seaboard of Scotland. Towards the end of the eighth century, these hordes of Vikings or sea-robbers, issuing from Norway and Denmark, had appeared in the western sea, ravaging and plundering the coasts and islands, and their course was everywhere marked by the burning and sacking of the monasteries and religious establishments. In 794, the ravaging of the islands and the destruction of Iona by these Gentiles, as they were termed, is recorded in the Irish annals. In 802, the Monastery of Iona was burnt by them, and in 806 the community or family of Iona, as it was termed, slain, to the number of sixty-eight. In consequence of the insecurity of Iona, the abbot eventually retired to Kells, another foundation of St. Columba, and the reliques of St. Columba were subsequently taken to Ireland, when Derry became the head of the Columbian houses in Ireland, while a part of the reliques were removed to Dunkeld, which represented the Columbian clergy in Scotland. The influence of Iona, as the nucleus and centre of Gaelic learning, and of its Scottish clergy upon the population of the Highlands, thus ceased for ever.
The islands were, by degrees, occupied by these pirates, till eventually the Norwegian Kingdom of Man and the Isles was formed; and after they had passed over from Paganism to Christianity, and their power became constituted, the bishopric of the Isles became included in the Norwegian diocese of Man. During this period, which lasted till the middle of the twelfth century, while the Western Isles and the western shores of the mainland were in the occupation of the Norwegians, and a royal family of Scottish race was on the throne of the united population, all that remained intact of the Gaelic population of the Highlands was mainly represented by the great province of Moray, which contained the mainland part of the modern counties of Inverness and Ross, and whose chiefs or maormors are found, during the whole of this period, maintaining a struggle for local independence against the ruling powers, whether Scottish or Saxon, till they were finally suppressed in the year 1130 by the great battle in which Angus, the Celtic Earl of Moray, was defeated and slain by David the First.
The Norwegian Kingdom of Man and the Isles was now approaching its fall, and a new power arose on the ruins of that of the Maormors of Moray, which soon became paramount in the Western Highlands, and exercised a very different influence upon its language and population. This was the dynasty of the Celtic kings or Lords of the Isles, which took its rise under Somarled, the founder of the race in the twelfth century, and maintained a powerful sway in the West Highlands till the Lord of the Isles was forfeited at the close of the fifteenth century; and, after several ineffectual attempts to maintain their ground against the Government, finally fell in the middle of the succeeding century.
Whether the race of the Lords of the Isles was of Irish descent or not, is a question which depends upon the precise degree of credibility to be given to a Celtic pedigree which reaches back to the beginning of the fourth century; but certain it is, that the spirit and tendency of the whole race was essentially Irish. The history of Somarled, the founder of the family, who may, from female connexion, have possessed a Norwegian name, is quite incompatible with the idea of his representing a Norwegian house, or deriving his position by inheritance from them. The names of his father Gillabride, and his grandfather Gillaagamnan, are purely Celtic. The interest of his family was antagonistic to that of the Norwegians; their efforts were to supplant and drive them out, and to elevate a Gaelic kingdom upon their ruins. In the foundation of this kingdom, Irish aid and Irish interest entered largely, and the connexion of the family with Ireland became always more and more closely connected,—an influence and connexion extending to the powerful Celtic families who rose under their auspices and owned their sway.
Somarled, the founder of the race, first appears in history as regulus or petty king of Oirirgaidheal, or, as it is given in the Irish form, Airergaidheal, and, in the Latin, Argathelia, a name which had sprung up subsequently to the ninth century, signifying the coast-lands of the Gael, and embracing the entire west coast from Cowall to Loch Broom.
To this district he must have had hereditary claims; and an ancient sennachy of the race thus details the steps by which he recovered possession of it:—
Gillabride, the son of Gillaagamnan, the son and grandson of the Toiseach of Argyll, and descendant of Colla, being amongst his kindred in Ireland, the clan Colla, that is, the Macguires and Macmahons, held a great meeting and assembly in Fermanagh, the country of Macguire, regarding the affairs of Gillabride, how they might restore him to his patrimony, from which he had been driven by the power of the Lochlans and Finngalls. When Gillabride saw such a large body of men assembled together, he besought them to embark in his cause, and to assist the people of Alban, who were favourable to him in an attempt to win back the possession of the country. The people declared themselves willing to go, and four or five hundred put themselves under his command. With this company Gillabride proceeded to Alban, and landing there, commenced a series of skirmishes and sudden assaults, with the assistance of friends, for his name was then very powerful. The Lochlans possessed the islands from Man to the Orkneys; but the Gael retained possession of the woods and mountains in the districts, extending from Dumbarton to Caithness, north of the two oirirs,[23] and in Mar. Somarled, the son of Gillabride, was now becoming manly and illustrious, and a band attached themselves to him, who had possession of the hills and woods of Ardgowar and Morvaren. Here he came upon a large army of Lochlans and Fingalls, and assembled round him all the soldiers he could muster and the people engaged in herding the flocks, and ranged them in order of battle. He practised a great deception on his enemies, for he made the same company pass before them three times, so that it appeared to them as if there were three companies, and then attacked them. The enemy were broken by Somarled and fled, till they reached the north bank of the river Shiell, and part escaped with their king to the Isles. Somarled did not desist from his efforts till he had cleared the whole west side of Alban from the Lochlans, except the islands of the Finnlochlans, called Innsegall.
Having married the daughter of Olave the Red, the Norwegian king of Man and the Isles, he succeeded in 1154 in obtaining one-half of the Western Isles for his eldest son Dougall, the ancestor of the M’Dougalls, Lords of Lorn, in right of his mother. The portion of the Isles thus added to the Gaelic kingdom of Oirirgaidheal were those south of the point of Ardnamurchan, including Mull, Isla, and Jura. Ten years afterwards, in 1164, he showed still further his close relation with Ireland, by placing the Monastery of Iona under the Abbacy of Derry, and in the same year he was slain in Renfrew, in an attempt which he made to subvert the Scottish throne itself, with Irish assistance. His successors remained in possession of this territory, consisting of Oirirgaidheal, or the western districts, from Cowall to Loch Broom, and the southern half of the Isles, till 1222, when Alexander the Second took possession of Argathelia, and annexed the north part of it to the earldom of Ross, and the central portion to the district of Moray, leaving the districts of Morvaren and Garwmorvaren, and parts of South Argyll, with the south half of the Isles, to the descendants of Somarled. On the conquest of the Norwegian kingdom of Man and the Isles by the King of Scotland in 1266, Skye and Lewis were annexed to the earldom of Ross, the rest of the Isles went to Somarled’s family, their possessions were further increased by grants from Robert Bruce, and in the end of the fourteenth century they inherited the possessions of the earldom of Ross, by which they regained possession of the Oirir a tuath. A petty kingdom was thus formed, consisting of Argathelia, or the western districts, from Cowall to Loch Broom and the Western Isles, nominally subordinate to the Scottish throne, but in reality all powerful among the population of the Highlands; the clans of the centre and north Highlands, which had once looked up to the almost equally powerful Maormors of Moray, alone representing a different interest.