To settle this vexed question of the Bards, as well as to obtain the sanction of the estates to the taxation of Argyle, King Hugh called a General Assembly in the year 590. The place of meeting was no longer the interdicted Tara, but for the monarch's convenience a site farther north was chosen—the hill of Drom-Keth, in the present county of Derry. Here came in rival state and splendour the Princes of the four Provinces, and other principal chieftains. The dignitaries of the Church also attended, and an occasional Druid was perhaps to be seen in the train of some unconverted Prince. The pretensions of the mother-country to impose a tax upon her Colony, were sustained by the profound learning and venerable name of St. Colman, Bishop of Dromore, one of the first men of his Order. When Columbkill "heard of the calling together of that General Assembly," and of the questions to be there decided, he resolved to attend, notwithstanding the stern vow of his earlier life, never to look on Irish soil again. Under a scruple of this kind, he is said to have remained blindfold, from his arrival in his fatherland, till his return to Iona. He was accompanied by an imposing train of attendants; by Aidan, Prince of Argyle, so deeply interested in the issue, and a suite of over one hundred persons, twenty of them Abbots or Bishops. Columbkill spoke for his companions; for already, as in Bede's time, the Abbots of Iona exercised over all the clergy north of the Humber, but still more directly north of the Tweed, a species of supremacy similar to that which the successors of St. Benedict and St. Bernard exercised, in turn, over Prelates and Princes on the European Continent. When the Assembly was opened the holy Bishop of Dromore stated the arguments in favour of Colonial taxation with learning and effect. Hugh himself impeached the Bards for their licentious and lawless lives. Columbkill defended both interests, and, by combining both, probably strengthened the friends of each. It is certain that he carried the Assembly with him, both against the monarch and those of the resident clergy, who had selected Colman as their spokesman. The Bardic Order was spared. The doctors, or master-singers among them, were prohibited from wandering from place to place; they were assigned residence with the chiefs and princes; their losel attendants were turned over to honest pursuits, and thus a great danger was averted, and one of the most essential of the Celtic institutions being reformed and regulated, was preserved. Scotland and Ireland have good reason to be grateful to the founder of Iona, for the interposition that preserved to us the music, which is now admitted to be one of the most precious inheritances of both countries.