The Annals of Ulster, otherwise Annala Senait. A chronicle of Irish Affairs from A.D. 431 to A.D. 1540. With translation, notes, and index. New introduction by Nollaig Ó Muraíle. Dublin: De Búrca, 1998. Four volumes. Full buckram gilt in slipcase.

The important Annals of Ulster compiled by Cathal Og Mac Maghnusa at Seanaidh Mac Maghnusa, now Belle Isle in Lough Erne, were so named by the noted ecclesiastic, Ussher, on account of their containing many chronicles relating to that province. They contain more detail on ecclesiastical history than the Annals of the Four Masters, and were consulted by Br. Michael O’Clery, Chief of the Four Masters, for his masterpiece.