Archived: 20 October 2026
Abstract
In 1421, Irish annals recorded interlocking conflicts, successions and deaths across Connacht, Breifne, Fermanagh, Offaly, Ulster and Munster. Ruaidhrí Mac Diarmata’s death brought Tomaltach’s contested succession in Moylurg, while Murchadh Ó Conchobhair’s death preceded Calbhach’s accession in Uí Fhailghe. Ó Ruairc, allied with Ó Domhnaill and Mag Uidhir, campaigned destructively against Clann Donnchadha; retaliation damaged Ó Ruairc’s residence before peace followed. Cathal Ó Ruairc seized Inis Caoin on Lough Melvin through garrison betrayal, capturing its lord and castle. Notices also commemorated bishops, nobles, Mór Mumhan, and historian Gilla Riabhach Ó Cléirigh, revealing ideals of hospitality, piety, learning and martial defence.
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Archived: 20 October 2026
Abstract
In 1422 Irish politics operated through local lordships, alliances, hostages, land and warfare. At Youghal, Ormond granted Desmond a life interest in 240 acres, securing revenues and services while retaining rights. In Tír Conaill, Toirdhealbhach Ó Domhnaill retired to Assaroe, succeeded by Niall Garbh, whose campaigns asserted authority across Ulster and into Connacht. Eóghan Ó Néill’s ransom and subsequent alliances demonstrated hostage diplomacy’s importance. Offaly’s An Calbhach defeated Meath forces near Trim, amid wider frontier fighting. Raids damaged crops, cattle, homes, churches and learned people. Henry V’s death brought Henry VI’s minority, while regional powers continued negotiating, raiding and fighting.
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Archived: 20 October 2026
Abstract
In 1423, Ireland was shaped by competing Gaelic lordships and a weakened English administration. Domnall and Eóghan Ó Néill, with Niall Garbh Ó Domhnaill, led an Ulster coalition through Louth into Meath, defeating forces associated with the king’s deputy and securing tribute and agreements. Niall Garbh also built Ath Seanaigh castle at Ballyshannon, reinforcing his new rule in Tír Chonaill after his father’s death. Dublin government was divided by disputes among Mortimer’s deputies and Richard Talbot. In Connacht, Uilleag de Burgh died, while Uí Maine underwent a violent succession. Clerical and scholarly obituaries reveal intertwined religious, hereditary and political authority.
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Archived: 20 October 2026
Abstract
In 1424, Ireland’s political map was defined less by a single national struggle than by a series of overlapping lordships, rival dynasties and negotiated allegiances. The English crown governed most directly from Dublin and its surrounding lordship, but royal office depended upon the cooperation of magnates whose power reached well beyond the formal limits of crown administration. Gaelic rulers, Hiberno-Irish dynasties and English settlers all made and remade local political worlds through warfare, tribute, marriage, submission and the possession of castles. The year is especially notable for the arrival in Ireland of Edmund Mortimer, earl of March and Ulster, as
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Archived: 20 October 2026
Abstract
In 1425, Edmund Mortimer, the king’s lieutenant and earl of March and Ulster, died suddenly at Trim while pursuing agreements with northern Gaelic lords. His death undermined a fragile settlement, followed by arrests of visitors and worsening Ulster conflict. James Butler, earl of Ormond, became lieutenant and negotiated written alliances with the Meic Mathghamhna and Éoghan Ó Néill. In Connacht, Toirrdelbach Ruad Ó Conchobair died and Cathal, son of Ruaidrí, succeeded amid violence. Brian Ballach Mac Uí Néill Buidhe was killed at Carrickfergus. Severe winter weather devastated cattle, crops and people, while records showed religious and learned life across Ireland.
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Archived: 20 October 2026
Abstract
In 1426, Ireland comprised overlapping English, Gaelic and Gaelicised jurisdictions rather than a unified state. Naghtan O'Donnell was ransomed from English captivity by his brother Niall, who provided extensive property and hostages; Turlough O'Donnell subsequently escaped with four fellow hostages. Annals record successions, deaths and kin violence, including O'Brien inauguration, Mac Mahon’s killing, and O'Conor losses. Reconciliation between Owen O'Neill and O'Neill aimed to recover alienated lands. Learned historians, hospitality, penance and plague also feature. Dublin received royal compensation for earlier military service, while an Ormond deed leased Kilkenny mills, demonstrating administrative, economic and seigneurial institutions alongside regional personal power.
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Archived: 20 October 2026
Abstract
In 1427, Ireland’s fragmented political order was shaped by dynastic rivalry, constrained English administration and local military action. Donnchadh Mac Murchadha, king of Leinster, returned after eight years’ imprisonment in England, challenging his brother Gerald’s authority while receiving English support. Lord Grey briefly assumed the lieutenancy, reliant on local deputies amid fiscal and factional weakness. English or Anglo-Irish forces demolished Edenderry Castle, while an Ulster coalition led by Niall Garbh Ó Domhnaill defeated MacQuillan’s forces, taking prisoners and booty. Annalistic obituaries emphasised penitence, hospitality and charitable guest-houses, demonstrating that reputation, kinship and religious patronage remained central to power and standing.
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Archived: 20 October 2026
Abstract
In 1428, Irish annals recorded no single national crisis but interconnected regional events. Aedh Mag Uidhir, a Fermanagh lord returning from pilgrimage to Compostela, died at Kinsale on 11 August and was buried at Cork, illustrating maritime, religious and political links. His death coincided with Maguire dynastic violence, including seizure of his sons’ castle and the killing of Aedh Óg. In Leinster, Donnchadh Mac Murchadha Caomhánach’s ransom, return and cooperation with English authority reflected negotiated power. Deaths of ecclesiastical and local rulers, notably a Mac Conmara chief, reveal hereditary offices, patronage, protection and peace as foundations of Ireland’s diverse lordships.
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Archived: 20 October 2026
Abstract
The best-documented Irish event of 1429 was a major defeat at Achadh Cille Móire, now generally identified with Aghakilmore in County Cavan. It was not a battle between two neatly bounded nations. Rather, it grew from the shifting alliances, rival branches and armed followings that shaped lordship in the Breifne borderlands. The annals place it firmly in this year, while their differing emphases also reveal why a single encounter could matter far beyond the field on which it was fought. War in Breifne The Annals of Ulster report a “great war” between Tadhg Ua Ruairc (O’Rourke) and Eóghan Ua Raighillaigh
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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.
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