Related Archive: East Bréifne

Cavan Observance

Cavan Observance

Archived: 19 October 2026

Abstract

In 1502, Ireland was shaped by local lordship, dynastic violence, religious reform and environmental hardship. Raids and feuds across East Breifne, Fermanagh, Monaghan and Ulster killed warriors, professionals and kin, while alliances enabled armed retinues to cross boundaries. John O’Reilly secured Cavan’s Franciscan monastery for the Strict Observance through Rome, demonstrating both reforming connections and secular authority. Church offices remained contested and hereditary. Severe weather killed cattle and disrupted cultivation throughout Ireland, threatening subsistence and lordly resources. The deaths of poet Domnall Ó hUiginn and learned figures show scholarly networks. Munster experienced change, while English administration remained limited around Dublin.

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York’s Parliament

York’s Parliament

Archived: 20 October 2026

Abstract

In 1460, Richard of York’s Drogheda parliament affirmed his lieutenancy and declared that Ireland was governed by laws accepted in its own parliament, while regulating defence, finance and local administration. Conflict exposed fragile frontiers: Conn O’Conor Faly defeated lordship forces, and English troops killed John O’Reilly of East Breifne, prompting Cathal O’Reilly’s succession. Captivity and maritime warfare further shaped regional politics. Franciscan patronage and Observant reform expanded through Moyne, Sherkin and Enniscorthy, although foundation dates remain uncertain. The killing of Killaloe’s bishop showed clerical vulnerability. Overall, the year revealed overlapping jurisdictions, military households, contested lordship power and resilient religious networks.

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Tigernán's Ambush

Tigernán's Ambush

Archived: 21 October 2026

Abstract

In 1391, Irish annals recorded fragmented but revealing struggles for power. Tigernán Mór Ó Ruairc escaped an ambush at a Breifne pass while travelling to meet John Ó Raighillaigh, defeating attackers despite conflicting accounts of their numbers. Diarmaid Mac Eochagáin, lord of Cenél Fiachach, died in January. Domhnall Óg Mac Carthaigh Mór, king of Desmond, died and was succeeded by his son Tadhg. In Ulster, Mac Gilla-Muire of Uí nDerca-Céin and Ó hAnluain of Oirthir were killed by kinsmen. Poet-scholar Tadhg Ó hUiginn and Bébhinn Ó Maelconaire died. English statutes applied in the Dublin lordship, but Gaelic authority remained decisive.

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Breifne War

Breifne War

Archived: 21 October 2026

Abstract

In 1390, rivalry between Tighearnán Mór Ó Ruairc of West Breifne and Tomás Mór Ó Raghallaigh of East Breifne drew allied kindreds into a great war. Maghnus Ó Ruairc escaped captivity at Lough Oughter but was killed near Lough Scur. Peace followed, secured by concessions, hostages and expulsions, though raids, forced movements and cattle losses continued. Tomás’s death brought Seán Ó Raghallaigh to power. Elsewhere, Kilbarron Castle was demolished, while legal, historical and ecclesiastical figures died. The Book of Ballymote’s late fourteenth-century compilation reflected enduring scholarly patronage. Despite English justiciar Sir John Stanley, regional lords managed conflict and settlement independently.

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Lough Oughter

Lough Oughter

Archived: 22 October 2026

Abstract

In 1369, Ireland’s contested lordships were shaped by dynastic conflict, royal administration and ecclesiastical change. Pilib Ó Raghallaigh, king of east Breifne, was imprisoned by nephews at Lough Oughter, but his son-in-law, Pilib Maguire of Fermanagh, captured the island castle by boat and restored him. Allied resistance had earlier failed at Blencup. William Windsor arrived as royal lieutenant, summoned a Dublin parliament, and executed Diarmait Mac Murchadha and his designated successor, demonstrating force without securing Leinster. In Thomond, Mathghamhain Ó Briain died and Brian Sreamhach succeeded. Church deaths in Oriel and Breifne underscored political importance. Alliances and waterways shaped power.

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Oriel Siege

Oriel Siege

Archived: 22 October 2026

Abstract

In 1365, Niall Ó Néill, newly king of Tír Eógain, led a coalition into Oriel, besieging Brian Mac Mathghamhna before an unauthorised assault shattered the settlement and killed allies. Dynastic contention also reshaped Connacht, Magh Luirg and East Bréifne, where deaths, accessions, warfare and Cú Chonnacht Ó Raghallaigh’s religious retirement altered lordship. Raids on border communities demonstrated the human cost of rivalry. Ecclesiastical leaders and learned travellers remained active across Irish Sea networks. In the English lordship, Lionel of Antwerp briefly returned England, while Thomond’s rulers submitted diplomatically. The year reveals authority as negotiated through warfare, kinship, religion and accommodation.

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Boyne Floods

Boyne Floods

Archived: 23 October 2026

Abstract

In 1330, violent storms and flooding devastated parts of Ireland, sweeping away nearly all Boyne bridges, damaging Trim and Drogheda, delaying harvests and raising grain prices. These disruptions hindered trade, travel, government and military movement. Meanwhile, Roger Outlaw’s Kilkenny parliament sought support against Brian Bán Ó Briain in Munster, exposing rival magnates’ uncertain loyalties. Edward III warned the earls of Ulster and Desmond against private warfare, while Adam de Lymbergh became chancellor. Violence afflicted Meath, although Wexford fighting is uncertainly dated. Gilla Ísu Ruad Ó Ragallaig died at Cavan’s Franciscan friary, illustrating the links between Gaelic lordship and religious patronage.

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