Saint Patrick, having received some grants of land from the chieftain Daire, on the hill called Ard-Macha (the Height of Macha), built a stone church on the summit and a monastery and some other religious edifices round about, and fixed on this place for his metropolitan see.
[4][5] A most learned primate was James Ussher (1625–56), whose most important works were "Veterum Epistolarum Hibernicarum Sylloge", published in 1632, and "Brittanicarum Ecclesiarum Antiquitates", which appeared in 1639.
He left his valuable library, comprising several thousand printed books and manuscripts, to Trinity College, Dublin, and his complete works were published by that institution in twenty-four volumes.
Narcissus Marsh (1702–13), another learned prelate, built the noble library in Dublin which bears his name, filled it with a valuable collection of theological and Oriental works and liberally endowed it for the support of a librarian and deputy.
On his successor, Marcus Gervais Beresford (1862–65), fell a large portion of the task of providing for the future organization and sustentation of the Church of Ireland, which was disestablished from 1 January 1871.