In the first two years of his reign, Hugh VII. was occupied in securing the hostages of his suffragans; in the third he swept the remaining Danish and Norwegian garrisons out of Ulster, and defeated a newly arrived force on the borders of Lough Foyle; the next the Danish Earls went on a foray into Scotland, and no exploit is to be recorded; in his sixth year, Hugh, with 1,000 chosen men of his own tribe and the aid of the Sil-Murray (O'Conor's) of Connaught, attacked and defeated a force of 5,000 Danes with their Leinster allies, near Dublin at a place supposed to be identical with Killaderry. Earl Olaf lost his son, and Erin her _Roydamna_, or heir-apparent, on this field, which was much celebrated by the Bards of Ulster and of Connaught. Amongst those who fell was Flan, son of Conaing, chief of the district which included the plundered cemeteries, fighting on the side of the plunderers. The mother of Flan was one of those who composed quatrains on the event of the battle, and her lines are a natural and affecting alternation from joy to grief—joy for the triumph of her brother and her country, and grief for the loss of her self-willed, warlike son. Olaf, the Danish leader, avenged in the next campaign the loss of his son, by a successful descent on Armagh, once again rising from its ruins. He put to the sword 1,000 persons, and left the primatial city lifeless, charred, and desolate. In the next ensuing year the monarch chastised the Leinster allies of the Danes, traversing their territory with fire and sword from Dublin to the border town of Gowran. This seems to have been the last of his notable exploits in arms. He died on the 20th of November, 876, and is lamented by the Bards as "a generous, wise, staid man." These praises belong—if at all deserved—to his old age. Flan, son of Malachy I. (and surnamed like his father "of the Shannon"), succeeded in the year 877, of the Annals of the Four Masters, or more accurately the year 879 of our common era. He enjoyed the very unusual reign of thirty-eight years. Some of the domestic events of his time are of so unprecedented a character, and the period embraced is so considerable, that we must devote to it a separate chapter. CHAPTER III. REIGN OF FLAN "OF THE SHANNON" (A.D. 879 TO 916).