Thomas Maguire’s Fermanagh Succession
Archived: 20 October 2026
Abstract
In 1430, Irish political life was marked by warfare, negotiation and succession rather than an island-wide event. Tomás Mág Uidhir died on 13 November after thirty-six years ruling Fermanagh, and his son Tomás Óg succeeded with publicly affirmed support. Eóghan O’Neill raided Oriel and Meath, securing tribute, submissions and a hostage without permanently conquering these territories. In Cork, Kilbrittain castle changed hands amid MacCarthy and Desmond conflict. Raids and rival claims affected Connacht and Breifne, where sanctuary and éraic enabled settlement. Deaths of clerics and legal scholars underline ecclesiastical and learned institutions’ roles in authority, hospitality, memory and social order.