A Fragile Conquest – Emerald Archives

Ireland in 1173 stood between invasion and settlement. Four years had passed since the first substantial forces recruited in Wales landed in support of Diarmait Mac Murchada, and less than two since Henry II had personally imposed his authority upon the Anglo-Norman leaders and several Irish kings. Yet royal declarations did not amount to control of the island. Richard de Clare, commonly called Strongbow, held Leinster under Henry, Hugh de Lacy had received Meath, and royal officers controlled strategically important towns. Beyond their strongest garrisons, however, power remained contested, negotiated and vulnerable.

An Unsettled Political Order

Ruaidrí Ua Conchobair remained king of Connacht and Ireland’s leading Gaelic overking. Henry II nevertheless claimed an overriding authority that Ruaidrí had neither accepted in a lasting settlement nor decisively defeated. The political map therefore contained overlapping claims. Irish kings continued to expect tribute, hostages and military service from lesser rulers, while Henry’s followers divided territories into lordships supposedly held from the English crown. Local communities might encounter both systems, each backed by armed force but neither uniformly effective.

Henry had left Ireland in April 1172, placing Dublin in Hugh de Lacy’s custody and confirming arrangements intended to prevent Strongbow from becoming an independent prince. Strongbow’s marriage to Aoife, daughter of Diarmait Mac Murchada, supported his claim to Leinster in his own eyes, but Gaelic succession did not automatically recognise inheritance through a daughter. Members of the Mac Murchada dynasty and subordinate Leinster rulers therefore had reasons to resist the new lordship even when they had previously cooperated with its soldiers.

Ireland and the Angevin Revolt

The great rebellion against Henry II, begun by his sons and their allies in 1173, directly affected Ireland. Strongbow and other leading barons, including Hugh de Lacy, were summoned to royal service overseas. Strongbow served Henry in Normandy and was entrusted for a time with the important frontier fortress of Gisors. Their departure exposed how dependent the new Irish lordships remained upon a relatively small military elite whose obligations stretched across England, Wales, Normandy and Ireland.

Later in the summer, Henry permitted Strongbow to return. The earl came back not merely as lord of Leinster but as the king’s chief representative in Ireland, with authority connected to Dublin and Waterford and renewed possession of Wexford. In return, he recruited men for Henry’s war. Forces drawn from the Irish establishment crossed to England and participated in the royal victory over the rebel earl of Leicester at Fornham on 17 October. Ireland was already functioning as one theatre and recruiting ground within Henry’s wider dominions.

This movement of commanders and troops weakened local garrisons. Later narratives associate the period with Raymond le Gros and aggressive raiding into the south, including the Déisi. The precise sequence of Raymond’s movements is less secure than the annalistic record of events at Kilkenny, and not every episode traditionally assigned to 1173 can be dated with confidence. What is clear is that raiding, disputed command and shortages of dependable manpower aggravated resistance throughout the south-east.

The Loss of Kilkenny

The year’s most important firmly recorded military reverse occurred at Kilkenny, probably late in 1173. Domnall Mór Ua Briain, king of Thomond, advanced against the castle and its foreign garrison. He was joined by a western Connacht contingent sent by Ruaidrí Ua Conchobair and commanded by Ruaidrí’s son Conchobar. This was a significant, if temporary, combination of Ua Briain and Ua Conchobair power against the expanding lordship of Leinster.

The Annals of Tigernach report that the garrison learned of the approaching host, abandoned Kilkenny and withdrew to Waterford. The stronghold or settlement was then broken into and the surrounding district plundered. The annalist regarded the retreat as a grievous setback for Ireland’s foreigners. Archaeology and later historical reconstruction suggest that Strongbow’s first castle at Kilkenny was an earth-and-timber fortification rather than the great stone structure visible today. Its position above a crossing of the River Nore nonetheless gave it considerable strategic importance.

Domnall’s success showed the limits of castle-building when a garrison lacked adequate numbers, supplies or local support. It also prevented Kilkenny from immediately becoming a secure centre of colonisation in Osraige. The site would later be reoccupied and extensively developed, but in 1173 the new western edge of Strongbow’s Leinster lordship contracted towards the safer royal port of Waterford.

Resistance Within Leinster

Opposition was not confined to an army arriving from Thomond and Connacht. The Annals of Tigernach record that an unnamed son of Domnall Caemhanach, himself a son of the late Diarmait Mac Murchada, rebelled against the family of the earl and inflicted a slaughter upon the foreigners. The brief entry gives neither a battlefield nor a reliable number of casualties, but it reveals a fundamental dispute: Strongbow’s claim through Aoife did not end the political ambitions of Diarmait’s male descendants.

Other Leinster rulers occupied similarly difficult positions. Some had submitted to Henry II or made agreements with Strongbow, yet grants to incoming lords threatened their territories and authority. Cooperation and resistance were not fixed ethnic choices. Gaelic kings could fight beside Anglo-Norman troops against Irish rivals, while Norse-Irish townspeople, Welsh soldiers and settlers from England or Flanders might serve whichever lord best protected their immediate interests.

Violence in Meath and Ulster

The conquest did not replace Ireland’s older dynastic conflicts. In Meath, Domnall Bregach Ua Máel Sechlainn was killed at the Columban monastery of Durrow by his paternal kinsman Art Ua Máel Sechlainn and the Muintir Laeghacháin. Art succeeded him. This occurred even though Henry had granted the kingdom of Meath to Hugh de Lacy in 1172. The episode demonstrates that a royal grant on parchment did not erase the Uí Máel Sechlainn dynasty or its internal struggles.

Northern annalistic material likewise records conflict largely independent of Strongbow’s lordship. The Annals of Tigernach place the killing of Donn Sléibe, king of Ulaid, by the Uí Echach of Ulaid and his own brother under 1173. A major foray led by Áed Mac Óenghusa and Clann Áeda plundered the Great Third of Armagh; Áed was himself killed within three months. Ecclesiastical settlements remained tempting targets because they possessed food, livestock, valuables and dependent lands, despite the sacred protection that churches claimed.

Churches and Mortality

The annals preserve an unusually prominent series of ecclesiastical deaths. Muiredach Ua Cobhthaig, bishop of Cenél nEógain and a leading churchman of the north, died at Derry on 10 February. His obituary praised his ordination of clergy, renovation and consecration of churches, establishment of religious communities, charity towards the poor and personal penitence. Its elaborate language presents the reforming bishop as pastor, builder, patron and guardian of learning.

Cinaeth Ua Rónáin, bishop of Glendalough, also died, as did Etrú Ua Miadhacháin, bishop of Clonard, Máel Ísu Mac in Baird, bishop of Clonfert, and Máel Mochta, abbot of Clonmacnoise. Conaing Ua hAenghusa, head of the canons of Roscrea, was another loss. These deaths should not automatically be attributed to a single outbreak. The same annal that records them does, however, state that a great pestilence killed many people in Connacht and Munster during the year, without identifying the disease.

The institutional background was the continuing twelfth-century reform of the Irish church. Diocesan government, episcopal authority and continental religious orders had been developing before the invasion. The Synod of Cashel, held during Henry’s visit and normally dated to 1172, connected reform more closely with royal intervention. In 1173, however, monasteries and ancient ecclesiastical centres still remained deeply embedded in Gaelic lordship, local kinship and regional politics.

Land, Livestock and Trade

For most inhabitants, everyday life continued in a rural landscape of enclosed farmsteads, fields, pasture, woodland and church estates. Cattle were stores of wealth as well as sources of meat, milk, hides and political tribute. Cereals were also cultivated, particularly around fertile lowlands and major settlements. Consequently, the language of the annals repeatedly centres upon plunder: an army damaged an enemy not only by winning a battle but by removing animals, destroying crops and taking food needed by households and garrisons.

Dublin, Waterford and Wexford linked Ireland to ports around the Irish Sea and beyond. Their merchants and craftspeople included Norse-Irish inhabitants alongside newcomers from Britain and continental Europe. Ships carried soldiers and messages as readily as cloth, metal goods, hides, grain and wine. Kilkenny’s fall illustrated the connection between inland lordship and maritime supply: when its garrison could no longer hold the Nore crossing, Waterford offered walls, shipping and access to reinforcement.

Learning Amid Upheaval

No major surviving manuscript can be assigned securely to this calendar year alone. Nevertheless, 1173 belonged to an exceptionally productive period of Irish learning. The Book of Leinster had been compiled during the preceding decades, preserving saga, poetry, genealogy and historical tradition, while Máel Muire Ua Gormáin’s vernacular martyrology had recently demonstrated the vitality and international awareness of Irish religious scholarship. Scriptoria, schools and professional learned families continued their work despite warfare.

The annals themselves are part of that culture. Their concentration on kings, raids and senior clergy leaves most lives unrecorded, but their terse notices reveal what contemporaries considered memorable: legitimate succession, violated sanctuary, generous church leadership, famine or disease, and the fortunes of competing peoples. By the end of 1173, Strongbow had returned with enhanced royal authority, yet Kilkenny had fallen and resistance had spread within Leinster. The conquest had survived, but it was neither complete nor secure.

Primary Sources

Tags: 1170s, 1172, 1173, Áed Mac Óenghusa, ApproachThe First Normans, April, Archaeological Excavations, Architectural History, Derry City, Diarmait Mac Murchada, Domnall Caemhanach, Domnall MórMac Fáelái, Donn Sléibe, Dublin City, Early Medieval IrelandBook, ecomes Feudal Lord, Education History, English History, English InvasionIreland, February, Four MastersAnnals, Fragile Conques, Government History, Great Third, IrelandThe Dublin Regio, IrelandThe Norman Invasio, Irish Archaeology, Irish Church, Irish Famine, Irish History, Irish Rebellions, itish History, Kilkenny City, LeinsterUa Gormái, Máel Ísu Mac, Máel Mochta, Máel Sechlai, Maritime History, Middle Ages, Military Garrisons, Military History, Military Orders, Muintir Laeghachái, MunsterThe Origins, Political History, Primary SourcesThe Annals, RealityThe Irish Kings, Religious History, RuaidríUa Briai, Settlement and Society, SettlementsEarly Medieval Ireland, Theatre History, There Been Synods, TigernachThe Annals, Trade and Commerce, Twelfth CenturyDerbforgaill, Twelfth-Century Abductee, Waterford City, William Marshal, Within Leinster Oppositio