Archived: 26 September 2026
Abstract
In 1201, Ireland experienced interconnected struggles for kingship, lordship and ecclesiastical authority. In Connacht, Cathal Crobderg Ua Conchobair, aided by northern rulers and John de Courcy, failed to dislodge his kinsman Cathal Carrach, who received William de Burgh’s support. De Courcy’s subsequent defeat near Kilmacduagh and arrest by the de Lacys revealed rivalries among Anglo-Norman magnates. Ulster saw the killing of Ruaidhrí Mac Duinnsléibe and dynastic change in Cenél nEógain. In Munster, de Burgh campaigned with Ua Briain princes before churchmen mediated peace. King John redistributed lordships, while episcopal deaths and papal activity heightened institutional uncertainty. Conflict remained unresolved thereafter.
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Archived: 26 September 2026
Abstract
In 1141, Ireland remained a polity where Tairdelbach Ua Conchobair exercised contested high-kingship through raids, fortifications, hostages and submissions. His campaign in the midlands coincided with dynastic killings in Meath and lordships. Leinster’s Diarmait Mac Murchada ordered, or authorised, a purge that killed or blinded leading nobles, securing power but weakening provincial cohesion; he was defeated while raiding Laois. Conchobar Ua Briain gained Dublin, then his forces raided Connacht and destroyed Dún Gaillimhe. Church communities suffered and received protection, while monastic penance and burial bound elites to religious institutions. Cattle-raiding, provisioning, Dublin trade and rivalries underpinned an unstable political order.
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Archived: 26 September 2026
Abstract
Ireland in 1137 remained politically fragmented, as Tairdelbach Ua Conchobair of Connacht asserted contested overlordship through warfare and naval power on the Shannon. Rivalries involved Bréifne, Mide, Leinster, Munster and Hiberno-Norse towns. An allied fleet from Leinster, Dál Cais, Dublin and Wexford besieged Waterford, gaining hostages but not conclusively conquering it. Dynastic killing and raids destabilised Mide and Connacht. In the church, Malachy yielded Armagh to reformer Gilla meic Liac. A severe storm and widespread fires damaged communities. Despite violence, trade, maritime capacity, scholarship, artistic patronage and ecclesiastical reform demonstrated a dynamic, connected society within a rapidly changing medieval world.
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