Power in Transition – Emerald Archives

Dateline

Ireland entered 1117 amid political fragmentation, dynastic rivalry and the after-effects of a severe crisis in the south. No ruler exercised uncontested authority over the island. Domnall Ua Lochlainn remained the dominant king of the north, while the ageing Muirchertach Ua Briain, once Ireland’s most formidable ruler, had been weakened by illness and rebellion within his own family. The principal beneficiary was Tairdelbach Ua Conchobair, king of Connacht, whose interventions in Munster and Mide increasingly shaped Irish affairs. The year’s securely recorded events reveal this transfer of power through raids, battles, hostages and attacks on important churches.

Connacht and Munster

The most substantial campaign recorded for 1117 began with an incursion by Diarmait Ua Briain and the Munstermen into Connacht. The Annals of Tigernach name Tír Fhiachrach and Tír Briain among the districts ravaged. Such an expedition was intended not simply to destroy. Armies seized cattle, provisions and captives, damaged a rival’s standing and demonstrated that its ruler could not protect dependent communities. It continued the war between Connacht and Munster that had intensified as Muirchertach Ua Briain’s authority declined.

The Connachtmen answered by sending a force southwards. Its leaders included members of the Ua Conchobair dynasty and Brian son of Murchad, a claimant from a rival branch of the Uí Briain. Their involvement illustrates the complexity of Irish warfare: this was not a straightforward struggle between provinces, for competing branches of the same extended royal kindred could fight on opposite sides. The counter-raiders penetrated Munster as far as Sliabh Cua, burning, killing and plundering as they advanced.

A Munster force pursued them and battle followed at Lettracha Odráin, generally identified with Latteragh in northern County Tipperary. Other annals call the encounter the battle of Leacain, so its precise naming and topography are not entirely certain. The outcome is consistent across the principal accounts: the Dál Cais or Munster army was defeated, with two grandsons of Cennétig and many others killed. The victory strengthened Connacht’s position and exposed the divisions of the Uí Briain at a moment when their hold over Munster was already failing.

The battle did not immediately transfer Munster to Tairdelbach Ua Conchobair, but it belongs to a decisive phase in his rise. During the years that followed he would intervene repeatedly in the province and help divide its government between rival dynasties. In 1117 that larger settlement still lay ahead, yet the direction of events was apparent: Connacht could now carry war deep into Munster and return after defeating the forces sent against it.

Mide, Leinster and Dublin

Tairdelbach also tightened his influence over Mide. The chronicles state that he took hostages for Murchad Ua Máelshechlainn, king of Mide. Hostages were political guarantees rather than ordinary prisoners. Their surrender acknowledged superior power and helped enforce tribute, military cooperation or peaceful behaviour. The episode placed Murchad under Connacht’s pressure and gave Tairdelbach leverage in the strategically important central kingdom.

Chronicon Scotorum additionally records the “wandering” of Murchad, while the Annals of Inisfallen describe him as facing danger from the Dubliners and Leinstermen, who reached his encampment and remained near it for three nights. The sources do not provide a single, complete narrative, and it would be unsafe to reconstruct an exact sequence. Together, however, they show that Murchad’s position was insecure and that control of Mide was contested by neighbouring powers as well as by Connacht.

Another major change was the death at Dublin of Diarmait son of Énna, ruler of Leinster and of the “Foreigners”, the conventional annalistic term for Dublin’s Hiberno-Norse inhabitants. His combined title is significant. Dublin retained its own urban and Norse-Gaelic identity, but its kingship was now regularly fought over by Irish provincial dynasties. Diarmait’s death removed a ruler who had briefly united Leinster’s resources with possession of Ireland’s most important port.

The annals record his death but offer little detail about its immediate circumstances. They should therefore not be made to support a dramatic story of assassination or conquest. What can safely be said is that Leinster and Dublin lost their shared ruler during a period of wider instability. The city remained a political prize because of its fleet, craftsmen, merchants, silver economy and connections across the Irish Sea.

Violence in the North

Conflict also continued among the northern dynasties. Cenél Conaill defeated the branch of Cenél nÉogain associated with Inis Eoghain, or Inishowen, and the annals report that many nobles were killed. The Annals of Inisfallen associate the rout with Cill Mac nÉnáin, although the exact battlefield cannot be confidently established. The clash occurred within the wider Northern Uí Néill world and demonstrates that Domnall Ua Lochlainn’s supremacy did not eliminate local feuding or competition between powerful kindreds.

In the north-west midlands, Conchobar Ua Cairrelláin was killed by the Fir Manach. The entry is brief and does not explain whether the death occurred in battle, during a raid or through a private feud. Its inclusion nevertheless reflects the annalists’ close attention to the deaths of regional leaders. Political authority depended heavily upon individuals and their kindreds, so the killing of a lord could unsettle alliances, succession and control of tribute within a territory.

A Church Under Strain

The ecclesiastical record for 1117 is unusually crowded with deaths. Bishops associated with Connor, Down, Duleek, Ferns, Ardfert, Clonfert and Connacht were among those commemorated, together with senior office-holders at Fore, Clonard, Kells and Monasterboice. The clustering is striking, but the chronicles do not explicitly attribute it to an epidemic. Some names may have been collected into an annual obituary list, and it would be irresponsible to infer a single disaster without further evidence.

The most important death was that of Máel Muire Ua Dúnáin, who died at Clonard aged about seventy-seven. The sources praise him as chief bishop of Ireland, a master of wisdom and piety, and a renowned giver of alms. Exact calendar dates differ in later interpretations of the annalistic chronology, but his death belongs securely to 1117. His career linked the year directly to the great reform movement transforming the Irish Church.

Máel Muire had been a leading participant in the synods associated with Cashel and Ráith Bressail. These assemblies addressed clerical discipline, marriage and the organisation of territorial dioceses. Ráith Bressail, held several years before 1117, envisaged a hierarchy centred upon the archiepiscopal provinces of Armagh and Cashel. Implementation was gradual, and older monastic offices remained powerful, but Máel Muire’s death removed one of the principal figures who had promoted a more clearly diocesan and internationally connected Church.

The attack on Kells showed how exposed ecclesiastical communities remained. Máel Brigte son of Rónán, coarb or successor of the monastery’s founding saintly tradition, was killed by Áed Ua Ruairc and the Uí Briúin. Members of the community were slaughtered with him on the vigil of a feast called Domnach Crom Duban. The Ulster annalist condemned the perpetrators in unusually forceful biblical language, indicating that this was regarded not merely as another feud but as a grave violation of a sacred community.

Church settlements were centres of worship, learning, hospitality, craft activity and agricultural administration. They also possessed land, cattle, relics and political influence, making them tempting targets. A coarb might lead a community with extensive secular interests and close dynastic connections. Consequently, violence at Kells belonged both to ecclesiastical history and to the competition for power in Mide and Bréifne.

Life After Famine

The annals place a devastating famine in Munster and Leinster in 1116, immediately before the events described here. They report depopulated territories, migration and desperate hunger. No source securely announces either renewed famine or full recovery in 1117, but the previous year’s catastrophe forms essential context. Armies moving through southern districts would have requisitioned food, driven away cattle and burned settlements whose inhabitants may already have been weakened or displaced.

For most people, daily life remained rooted in farming. Cattle represented food, wealth, rent and political obligation, while grain cultivation, dairying, pigs, sheep, fishing and woodland resources supported households of varying status. Rural settlement was dispersed among farmsteads, ringforts, ecclesiastical estates and royal centres. The annals chiefly record rulers and clerics, leaving ordinary cultivators visible mainly through references to famine, tribute, captives and the destruction caused by campaigning.

Dublin offered a different environment. Archaeology reveals timber houses, streets and workshops serving leather-workers, comb-makers, metalworkers, woodworkers and traders. Ships connected the town with Britain and the wider Atlantic world. Yet commercial life existed alongside coercion: captives taken in Irish wars could still enter systems of enslavement and exchange. The year’s repeated references to plundering and hostages remind us that wealth circulated through force, gift-giving and political dependence as well as through markets.

A Revealing Year

No single event in 1117 created a new political order, but the year clearly exposed an old one in decline. Munster’s divided rulers suffered defeat, Connacht extended its authority into Mide, Leinster and Dublin lost a shared king, and northern dynasties continued their own violent contests. At the same time, the death of Máel Muire Ua Dúnáin and the massacre at Kells revealed both the ambitions and vulnerability of the reforming Church. Ireland remained regionally diverse, but warfare, ecclesiastical change and the struggle for overlordship were drawing its kingdoms into an increasingly interconnected contest.

Primary Sources

Tags: Archaeological Excavations, Ireland Year by Year, Mac Lochlai, May, Medieval Ireland, Primary SourcesThe Annals