Of all the ancient kings of Ireland, Cormac, who reigned in the third century, is unquestionably considered greatest by the poets, the seanachies, and the chroniclers. His father Art was the son of Conn of the Hundred Battles, and was known as Art the Lonely, as he had lost his brothers, Connla and Crionna - both slain by their uncles. It was at the court of Lugaid at Tara, that Cormac first distinguished himself, and gave token of the ability and wisdom, which were, afterwards, to mark him the most distinguished of Eirinn’s monarchs.
From his exile in Connaught, Cormac, a green youth , had returned to Tara, where, unrecognised, he was engaged herding sheep for a poor widow. Now one of the sheep broke into the queen’s garden, and ate the queen’s vegetables. And King Lugaid, equally angry as his queen, after he heard the case, ordered that for penalty on the widow, her sheep should be forfeit to the queen. To the amazement of Lugaid’s court, the herd boy who had been watching the proceedings with anxiety, arose, and, facing the king, said, "Unjust is thy award, O king, for, because thy queen hath lost a few vegetables, thou wouldst deprive the poor widow of her livelihood?" When the king recovered from his astoundment, he looked contemptuously at the lad, asking scathingly: "And what, O wise herd boy would be thy just award?" The herd boy, not one little bit disconcerted, answered him "My award would be that the wool of the sheep should pay for the vegetables the sheep has eaten - because both the wool and the green things will grow again, and both parties have forgotten their hurt." And the wonderful wisdom of the judgement drew the applause of the astounded court. But Lugaid exclaimed in alarm: "It is the judgement of a King." And, the lad’s great mind having betrayed him, he had to flee. He returned and claimed the throne when Lugaid was killed, but at a feast which he gave to the princes whose support he wanted, Fergus Black Tooth of Ulster, who coveted the Ard Righship, managed, it is said, to singe the hair of Cormac - creating a blemish that debarred the young man temporarily from the throne. And he fled again from Tara, fearing designs upon his life. Fergus became Ard Righ for a year - at the end of which time Cormac returned with an army, and, supported by Taig, the son of Ciann, and grandson of the great Oilill Olum of Munster, completely overthrew the usurper in the great battle of Crionna (on the Boyne) where Fergus and his two brothers were slain - and Cormac won undisputed possession of the monarchy. Taig was granted a large territory between Damlaig (Duleek) and the River Liffi, since then called the Ciannachta. He became the ancestor of the O’Hara’s, O’Gara’s, O’Carroll’s, and other now Northern families. In Cormac’s time, the world was replete with all that was good and the food and the fat of the land, and the gifts of the sea were in abundance in this king’s reign. There were neither woundings nor robberies in his time, but every one enjoyed his own, in peace. Cormac rebuilt the palace of Tara, with much magnificence. He built the Teach Mi Chuarta, the great banqueting hall, that was 760 feet by 46 feet, and 45 feet high. Until quite recently, the outline of the foundations of this great hall with the traces of its fourteen doorways, were still to be observed on Tara Hill. In the Book of Leinster is related "Three thousand persons each day is what Cormac used to maintain in tara; besides poets and satirists, and all the strangers who sought the king; Galls, and Romans, and Franks, and Frisian, and Longbards, and Albanians and Saxons, and Picts, for all these used to seek him, and it was with gold and with silver, with steeds and with chariots, that he presented them. They used all to come to Cormac, because there was not in his time, nor before him, any more celebrated in honour, and in dignity, and in wisdom, except only Solomon, the son of David. The remarkable king died in the year 267 - more than a cent