of his capture by the Danes, and captivity in their fleet at Dundalk, of the love which Sitrick's wife bore him, and of his gallant rescue by the Dalcassians and Eugenians, have no historical sanction. He was often both at war and at peace with the foreigners of Cork and Limerick, and did not hesitate more than once to employ their arms for the maintenance of his own supremacy; but his only authentic captivity was, as a hostage, in the hands of Murkertach. While the latter was absent, on his expedition to Insi-Gall, Kellachan fell upon the Deisi and Ossorians, and inflicted severe chastisement upon them-alleging, as his provocation, that they had given hostages to Murkertach, and acknowledged him as _Roydamna_ of all Erin, in contempt of the co-equal rights of Cashel. When Murkertach returned from his Scotch expedition, and heard what had occurred, and on what pretext Kellachan had acted, he assembled at Aileach all the branches of the Northern Hy-Nial, for whom this was cause, indeed. Out of these he selected 1000 chosen men, whom he provided, among other equipments, with those "leathern coats," which lent a _soubriquet_ to his name; and with these "ten hundred heroes," he set out--strong in his popularity and his alliances--to make a circuit of the entire island (A.D. 940). He departed from Aileach, says his Bard, whose Itinerary we have, "keeping his left hand to the sea;" Dublin, once more rebuilt, acknowledged his title, and Sitrick, one of its lords, went with him as hostage for Earl Blacair and his countrymen; Leinster surrendered him Lorcan, its King; Kellachan, of Cashel, overawed by his superior fortune, advised his own people not to resist by force, and consented to become himself the hostage for all Munster. In Connaught, Conor, (from whom the O'Conors take their family name), son of the Prince, came voluntarily to his camp, and was received with open arms. Kellachan alone was submitted to the indignity of wearing a fetter. With these distinguished hostages, Murkertach and his leather-cloaked "ten hundred" returned to Aileach, where, for five months, they spent a season of unbounded rejoicing. In the following year, the _Roydamna_ transferred the hostages to King Donogh, as his _suzerain_, thus setting the highest example of obedience from the highest place. He might now look abroad over all the tribes of Erin, and feel himself without a rival among his countrymen. He stood at the very summit of his good fortune, when the Danes of Dublin, reinforced from abroad, after his "Circuit," renewed their old plundering practices. They marched north, at the close of winter, under Earl Blacair, their destination evidently being Armagh. Murkertach, with some troops hastily collected, disputed their passage at the ford of Ardee. An engagement ensued on Saturday, the 4th of March, 943, in which the noble _Roydamna_ fell. King Donogh, to whose reign his vigorous spirit has given its main historical importance, survived him but a twelvemonth; the Monarch died in the bed of repose; his destined successor in the thick of battle.

The death of the brave and beloved Murkertach filled all Erin with grief and rage, and as King Donogh was too old to avenge his destined successor, that duty devolved on Congal, the new _Roydamna_. In the year after the fatal action at Ardee, Congal, with Brann, King of Leinster, and Kellach, heir of Leinster, assaulted and took Dublin, and wreaked a terrible revenge for the nation's loss. The "women, children, and plebeians," were carried off captive; the greater part of the garrison were put to the sword; but a portion escaped in their vessels to their fortress on Dalkey, an island in the bay of Dublin. This was the third time within a century that Dublin had been rid of its foreign yoke, and yet as the Gaelic-Irish would not themselves dwell in fortified towns, the site remained open and unoccupied, to be rebuilt as often as it might be retaken. The gallant Congal, the same year, succeeded on the death of Donogh to the sovereignty, and, so soon as he had secured his seat, and surrounded it with sufficient hostages, he showed that he could not only avenge the death, but imitate the glorious life of him whose place he held. Two considerable victories in his third and fourth years increased his fame, and rejoiced the hearts of his countrymen: the first was won at Slane, aided by the Lord of Breffni (O'Ruarc), and by Olaf the Crooked, a northern chief. The second was fought at Dublin (947), in which Blacair, the victor at Ardee, and 1,600 of his men were slain. Thus was the death of Murkertach finally avenged.

It is very remarkable that the first conversions to Christianity among the Danes of Dublin should have taken place immediately after these successive defeats--in 948. Nor, although quite willing to impute the best and most disinterested motives to these first neophytes, can we shut our eyes to the fact that no change of life, such as we might reasonably look for, accompanied their change of religion. Godfrid, son of Sitrick, and successor of Blacair, who professed himself a Christian in 948, plundered and destroyed the churches of East-Meath in 949, burnt 150 persons in the oratory of Drumree, and carried off as captives 3,000 persons. If the tree is to be judged by its fruits, this first year's growth of the new faith is rather alarming. It compels us to disbelieve the sincerity of Godfrid, at least, and the fighting men who wrought these outrages and sacrileges. It forces us to rank them with the incorrigible heathens who boasted that they had twenty times received the Sacrament of Baptism, and valued it for the twenty white robes which had been presented to them on those occasions. Still, we must endeavour hereafter, when we can, to distinguish Christian from Pagan Danes, and those of Irish birth, sons of the first comers, from the foreign-born kinsmen of their ancestors. Between these two classes there grew a gulf of feeling and experience, which a common language and common dangers only partially bridged over. Not seldom the interests and inclinations of the Irish-born Dane, especially if a true Christian, were at open variance with the interests and designs of the new arrivals from Denmark, and it is generally, if not invariably, with the former, that the Leinster and other Irish Princes enter into coalitions for common political purposes. The remainder of the reign of Congal is one vigorous battle. The Lord of Breffni, who had fought beside him on the hill of Slane, advanced his claim to be recognised _Roydamna_, and this being denied, broke out into rebellion and harassed his patrimony. Donald, son of Murkertach, and grandson of Nial, (the first who took the name of _Uai-Nial_, or O'Neill), disputed these pretensions of the Lord of Breffni; carried his boats overland from Aileach to Lough Erne in Fermanagh, and Lough Oughter in Cavan; attacked the lake-islands, where the treasure and hostages of Breffni were kept, and carried them off to his own fortress. The warlike and indefatigable king was in the field summer and winter enforcing his authority on Munster and Connaught, and battling with the foreign garrisons between times. No former Ard-Righ had a severer struggle with the insubordinate elements which beset him from first to last. His end was sudden, but not inglorious. In returning from the chariot-races at the Curragh of Kildare, he was surprised and slain in an ambuscade laid for him by Godfrid at a place on the banks of the Liffey called Tyraris or Teeraris house. By his side, fighting bravely, fell the lords of Teffia and Ferrard, two of his nephews, and others of his personal attendants and companions. The Dublin Danes had in their turn a day of rejoicing and of revenge for the defeats they had suffered at Congal's hands.

This reign is not only notable for the imputed first conversion of the Danes to Christianity, but also for the general adoption of family names. Hitherto, we have been enabled to distinguish clansmen only by tribe-names formed by prefixing _Hy_, _Kinnel_, _Sil_, _Muintir_, _Dal_, or some synonymous term, meaning race, kindred, sept, district, or part, to the proper name of a remote common ancestor, as Hy-Nial, Kinnel-Connel, Sil-Murray, Muintir-Eolais, Dal-g Cais, and Dal-Riada. But the great tribes now begin to break into families, and we are hereafter to know particular houses, by distinct hereditary surnames, as O'Neill, O'Conor, MacMurrough, and McCarthy. Yet, the whole body of relatives are often spoken of by the old tribal title, which, unless exceptions are named, is supposed to embrace all the descendants of the old connection to whom it was once common. At first this alternate use of tribe and family names may confuse the reader--for it _is_ rather puzzling to find a MacLoughlin with the same paternal ancestor as an O'Neill, and a McMahon of Thomond as an O'Brien, but the difficulty disappears with use and familiarity, and though the number and variety of newly-coined names cannot be at once committed to memory, the story itself gains in distinctness by the change.

In the year 955, Donald O'Neill, son of the brave and beloved Murkertach, was recognised as Ard-Righ, by the required number of Provinces, without recourse to coercion. But it was _not_ to be expected that any Ard-Righ should, at this period of his country's fortunes, reign long in peace. War was then the business of the King; the first art he had to learn, and the first to practise. Warfare in Ireland had not been a stationary science since the arrival of the Norwegians and their successors, the Danes. Something they may have acquired from the natives, and in turn the natives were not slow to copy whatever seemed most effective in their tactics. Donald IV. was the first to imitate their habit of employing armed boats on the inland lakes. He even improved on their example, by carrying these boats with him overland, and launching them wherever he needed their co-operation; as we have already seen him do in his expedition against Breffni, while _Roydamna_, and as we find him doing again, in the seventh year of his reign, when he carried his boats overland from Armagh to West-Meath in order to employ them on Loch Ennell, near Mullingar. He was at this time engaged in making his first royal visitation of the Provinces, upon which he spent two months in Leinster, with all his forces, coerced the Munster chiefs by fire and sword into obedience, and severely punished the insubordination of Fergal O'Ruarc, King of Connaught. His fleet upon Loch Ennell, and his severities generally while in their patrimony, so exasperated the powerful families of the Southern Hy-Nial (the elder of which was now known as O'Melaghlin), that on the first opportunity they leagued with the Dublin Danes, under their leader,