Two Nights at Clonmacnoise
Archived: 27 October 2026
In 936, Dublin-based foreigners plundered Clonmacnoise and occupied it for two nights, an exceptional affront to the major Shannon ecclesiastical and trading settlement. Chronicon Scotorum also records a further plundering by Cellachán of Cashel and Munster men. Foreign crews from Lough Erne reached Lough Ree, demonstrating waterways’ strategic value and exposing central Ireland to prolonged raiding. Donnchad Donn, king of Temair, burned Dublin, illustrating contested rather than centralised power. Armagh lost two successive senior church leaders, Ioseph and Máel Pátraic, while Aniudán, king of Corcu Modruad, died. These events reveal competing regional powers, vulnerable churches, and insecure communications throughout Ireland.