Aedh Reign
Archived: 14 November 2026
Abstract
Year DatingThe surviving notices for this period must be read through each annal’s own dating scheme. In the Annals of Ulster, the group that includes the 577 material is headed U577.0 with Kalends of January, sixth feria, twenty-sixth of the moon, followed by AD 576 before the entries themselves. The same source later places a different cluster under U578.0 with AD 577. These headings show that the printed AD label and the annal identifier are not interchangeable.The Annals of Tigernach and the Annals of the Four Masters both place this material under Annal T577 and Annal M577, but they format
