Corann and October Mortality
Archived: 2 November 2026
Abstract
In 683 CE, Ireland’s surviving annalistic record places political violence, contested provincial authority and the first reported onset of a grave mortality within the same year. The entries are terse, but their conjunction is striking: Dúnchad Muirisce, king of Connacht, was killed; Colgu, son of the former Tara ruler Blathmac, fell in the battle of Corann alongside Fergus, king of Cenél Cairpri; two strongholds were besieged; and, in October, a disease described as the “mortality of children” began. For a society whose history was usually recorded through the fates of rulers, clerics and religious houses, this last notice points beyond