The Battle of Magh Slecht
Archived: 25 October 2026
Abstract
In 1256, the political frontier running through Connacht and Breifne was anything but fixed. The year’s fullest surviving narrative, preserved in the Annals of Connacht and the closely related Annals of Loch Cé, records a remarkable sequence of armies, negotiations, raids, hostage-taking and local feuds. Its central event was a hard-fought encounter at Magh Slecht, near the passes of Sliabh an Iarainn, where Áed Ó Conchobair and Conchobar Ó Ruairc defeated leading men of the Uí Raghallaigh. Yet the battle was not an isolated clash: it exposed the fragile alliances and overlapping claims that shaped life in the Irish midlands.