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Cathal mac Finguine

d. 742

8th-century Irish monarch

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About Cathal mac Finguine

Cathal mac Finguine was a king.

Cathal mac Finguine (died 742) was an Irish King of Munster or Cashel, and effectively High King of Ireland as well. He belonged to the EĂłganacht Glendamnach sept of the dominant EĂłganachta kin-group whose members dominated Munster from the 7th century to the 10th. His father, uncle, grandfather and great-grandfather had also been kings of Cashel, as were his son and grandson.

Cathal's conflict with the UĂ­ NĂ©ill kings, Fergal mac MĂĄele DĂșin, Flaithbertach mac Loingsig, and Áed AllĂĄn, son of Fergal mac MĂĄele DĂșin, is reported at some length in the Irish annals, and again northern and southern versions provide differing accounts. Cathal also appears as a character, not always portrayed sympathetically as in Aislinge Meic Con Glinne where he is possessed by a demon of gluttony, in a number of prose and verse tales in the Middle Irish language.

Widely regarded as the most powerful Irish king of the first half of the 8th century, and the strongest (historical) king from Munster before Brian Bóruma, Cathal mac Finguine is believed to be the last king mentioned in the Baile Chuinn Chétchathaig. The most expansionist historical Eóganacht king before him was Faílbe Flann mac Áedo Duib (d. 639).

Background Map showing the major kingdoms and regions of early Christian Ireland. The EĂłganachta kingship, which had its chief seat at Cashel and chief church at Emly, was the most powerful in the southern half of Ireland, while the various branches of the UĂ­ NĂ©ill and Connachta dominated the northern half. At this time, the UĂ­ NĂ©ill were striving to be the sole Kings of Tara, with the succession generally alternating between the northern and southern branches of the UĂ­ NĂ©ill, although the ancient ceremonial kingship had not long before been held by the Laigin and Ulaid, and more distantly the DĂĄirine and Érainn. The kingship of Cashel, argued in early Munster sources, e.g., the Uraicecht Becc, as actually the most powerful in Ireland, was founded in the middle of the 5th century by the descendants of Conall Corc and Aimend, the "inner circle" of the EĂłganachta, who after a century and a half of able politicking had come to supersede the overlordship of the Corcu LoĂ­gde in Munster.

For the century and a quarter until Cathal's death, the kingship of Cashel was dominated by the EĂłganacht Chaisil and EĂłganacht Glendamnach septs of the inner circle. The lands of the Glendamnach lay to the south-west of Cashel, in the middle valley of the Blackwater. Cathal's father, Finguine mac Cathail Con-cen-mĂĄthair (d. 696), uncle, Ailill mac Cathail (d. 701), grandfather, Cathal CĂș-cen-mĂĄthair (d. 665/666), and great-grandfather, Cathal mac Áedo (d. 628), had been kings of Cashel.

While the Uí Néill and Eóganachta were the most important kingships in Ireland, the kings of Leinster and the kings of Connacht were significant forces. Leinster, once a much larger region, the northern parts of which had been conquered by the Uí Néill, was the target of expansionist Uí Néill kings, and also of the Eóganachta. The contest for control of Leinster would play a major part in Cathal's reign, and indeed in relations between the Eóganachta and Uí Néill in the centuries which followed. The kings of Connacht claimed a common kinship with the Uí Néill, and were largely favourable towards them. The remaining provincial kingship, that of the kings of Ulster, controlled a much smaller area than the later province of Ulster, largely confined to the lands north and east of Lough Neagh, and was generally hostile to the Uí Néill. Finally, in the vast province of Munster itself there were several respectable but peripheral dynasties, such as the Uí Liathåin (for whom see below), whose relationships with the Eóganachta were rather distant and ambiguous.

Early reign The earliest record concerning Cathal, although it does not explicitly name him, is in 715 when Murchad mac Brain Mut of the UĂ­ DĂșnlainge, the king of Leinster, led his inaugural raid against Cashel. The first event to mention Cathal is in 721 when he and Murchad mac Brain attacked the lands of the southern UĂ­ NĂ©ill. The Annals of Ulster report: "he wasting of Mag Breg by Cathal son of Finnguine, and by Murchad son of Bran." Later that year, Fergal mac MĂĄele DĂșin retaliated, not against Cathal and Munster, but against Murchad and Leinster. The Annals of Ulster report: "An invasion of the Laigin by Fergal, and the cattle tribute was imposed and the hostages of the Laigin secured for Fergal son of Mael DĂșin."

The Annals of Inisfallen, as partisan a southern record as the Annals of Ulster are biased towards the UĂ­ NĂ©ill, give a different and less reliable report of the events in 721:The harrying of Brega by Cathal son of Finnguine, king of Mumu, and after that he and Ferga son of Mael DĂșin, king of Temuir [Tara], made peace; and Ferga submitted to Cathal. For these were the five kings of the Munstermen who ruled Ireland after the [introduction of the] Faith, viz. Aengus son of Nad FraĂ­ch, and his son, i.e. Eochaid who ruled Ireland for seventeen years, and Cathal, son of Finnguine, and Feidlimid, son of Crimthann, and Brian, son of CennĂ©tig.

Fergal led an Uí Néill army south into Leinster again in 722, but this time he was defeated and killed by the Leinstermen. This defeat was recorded in the Cath Almaine, a poem about the battle of Allen, fought on 11 December 722, the feast of Saint Finnian of Clonard. Much of the work is devoted to the story of the faithful bard Donn Bó, but the introduction provides a late view of the war:For a long time there was great warfare between Cathal son of Findguine, king of Leth Mogha, and Fergal son of Måel Duin, king of Leth Cuinn. Fergal son of Mael Duin raided Leinster in order to injure Cathal son of Findguine; so Cathal son of Findguine wasted the whole of Magh Bregh [the plain of Brega], until they made peace and truce.

This truce, the poet tells, was broken by the Leinstermen:The Leinstermen had delivered this battle of Allen in the absence of Cathal mac Finguini, and Cathal was grieved that the battle was fought while he himself was away. They heard of Cathal's grudge against them, so this was the counsel they framed, to carry to Cathal Fergal's head as a trophy of the action.

Cathal and Flaithbertach mac Loingsig On the death of Fergal, the UĂ­ NĂ©ill kingship of Tara passed to Fogartach mac NĂ©ill of the SĂ­l nÁedo SlĂĄine of South Brega, whose nominal High Kingship was ended in 724 when he was killed fighting against his SĂ­l nÁedo SlĂĄine kinsman CinĂĄed mac Írgalaid of North Brega, who became the new overking of the UĂ­ NĂ©ill. CinĂĄed retained the overlordship of the UĂ­ NĂ©ill for less than four years, being killed in battle at Druim Corcain against the CenĂ©l Conaill king Flaithbertach mac Loingsig, who took the overlordship of the UĂ­ NĂ©ill. Flaithbertach himself reigned for only a few years before Áed AllĂĄn of the CenĂ©l nEĂłgain, son of Fergal mac MĂĄele DĂșin, fought him for the leadership of the UĂ­ NĂ©ill, beginning in 732 and continuing through several battles until Flaithbertach abdicated and entered a monastery in 734.

With the UĂ­ NĂ©ill kings no great threat during the reigns of Fogartach, CinĂĄed and Flaithbertach, Cathal sought to extend his authority over Leinster. The Cath Almaine claims that the dispute arose because Fergal mac MĂĄele DĂșin had been killed in defiance of the truce he had made with Cathal.

Cathal was defeated by Áed mac Colggen of the Uí Cheinnselaig, then King of Leinster, in 731, and the second battle in 735 was an even greater defeat:A battle between Mumu and Laigin, in which many of the Laigin and well nigh countless Munstermen perished; Cellach son of Faelchar, king of Osraige, fell therein, but Cathal son of Finnguine, king of Mumu, escaped.

In 733 Cathal raided the lands of the Southern Uí Néill, but was defeated and driven off from Tailtiu by Domnall Midi of Clann Cholmåin. Cathal had more success against the neighbouring Clann Cholmåin Bicc, ruled by Fallomon mac Con Congalt, whom he defeated at the Hill of Ward. In 734 Cathal inflicted a defeat on the Leinstermen at Bealach Ele.

Cathal and Áed AllĂĄn In 737, Áed AllĂĄn met with Cathal at Terryglass, probably neutral ground outwith the control of either king. Byrne says that it is unlikely that Cathal acknowledged Áed AllĂĄn's authority—the UĂ­ NĂ©ill had little enough influence in the south—but if Cathal had expected some benefit from the meeting, where he perhaps acknowledged the ecclesiastical supremacy of Armagh, he was to be disappointed. However, the clerics of Armagh may have been well satisfied as the Annals of Ulster, in the entry following that which reports the meeting of Cathal and Áed AllĂĄn, say that the law of Patrick was in force in Ireland. This presumably means that they agreed to the special treatment of the church, its lands and its tenants, as prescribed by the law of Patrick.

Mór Muman Of Mór Muman a legend survives which compares her to the goddess of sovereignty. Mór was placed under an enchantment and lost her senses. She wandered Ireland for two years before she came to Cashel and the court of Fingen. Fingen eventually slept with her, and her memory returned. In the morning, Fingen gave her the Queen's robe and brooch, and put aside his current Queen, daughter of the king of the Deisi, and put Mór in her place as she was of better blood. The Metrical Dindshenchas say of Fingen mac Áedo and Mór:Best of the women of Inis Failis Mór daughter of Áed Bennan.Better is Fingen than any herothat drives about Femen.

When Fingen died, the story says, Mór Muman married Cathal mac Finguine. Unfortunately, the collector of this tale mistook this Cathal for his great-grandfather, Cathal mac Áedo Flaind. He may have married Mór Muman, but Cathal mac Finguine certainly did not.

Depiction in The Vision of Mac Conglinne Cathal Mac Finguine is a major character portrayed in the medieval satire Aislinge Meic Con Glinne as ruler of the Kingdom of Munster. The satire is a commentary on the religious politics of 8th century Ireland.

Cathal is vying for the Kingship of Tara against the Kings of Ailech and in an effort to cement cordial relations he attempts courting LĂ­gach, the daughter of MĂĄel DĂșin mac MĂĄele Fithrich.

This battle for supremacy between Leath Cuinn and Leath Moga is expressed through the dialogue of a crone from each realm:

"He comes from the North, comes from the North,The son of MĂĄeldĂșin, over the rocks,Over Barrow's brink, over Barrow's brinkThe kine he take he will not stay.

He shall stay, shall stay, said the southern hag;He will be thankful if he escapes.By my father's hand, by my father's hand,If Cathal meets him, he'll take no kine"

Cathal's love letters are intercepted by LĂ­gach's brother Fergal mac MĂĄele DĂșin. Fergal asks a scholar to place charms and heathen spells on the apples being sent by his sister to King Cathal, with the aim of bringing about his destruction.

Cathal eats the apples and a demon of gluttony enters his stomach. His gluttonous actions are so terrible that a famine is caused and the people of Munster are brought low:

"Cathal thereupon ate the apples, and little creatures through the poison spells were formed of them in his inside. And those little creatures gathered in the womb of one - in that animal, so that there was formed the demon of gluttony. And this is the cause why the demon of gluttony abode in the throat of Cathal MacFinguine, to the ruin of the men of Munster during three half-years; and it is likely he would have ruined Ireland during another half-year."

Mac Conglinne is imprisoned by the monks for a slanderous ĂĄer he composes about the land of Cork. Mac Conglinne eventually manages to bargain his way to freedom when he claims he can cure King Cathal of his gluttonous possession that has brought Munster to its knees. His mother, Gormgel, also appears to have been of the UĂ­ LiathĂĄin, but from a different branch.

Cathal's father was Finguine mac Cathail, uncle Ailill mac Cathail, grandfather Cathal CĂș-cen-mĂĄthair, and great-grandfather Cathal mac Áedo. A son was ArtrĂ­ mac Cathail, and a grandson TnĂșthgal mac Artrach. With the exception of the last, all are reliably mentioned as kings of Cashel in the annals.

His living direct descendants, the later ruling dynasty of Eóganacht Glendamnach, descendants of Art Caemh, a great-grandson of Artrí mac Cathail, are the Ó Caiomh (O'Keeffes) of County Cork. His daughter, Taileflaith, also has prominent 21st-century descendants.

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Important facts

Died
742
Occupation
King
Positions held
King of Munster

Frequently asked questions

Who was Cathal mac Finguine?

8th-century Irish monarch

When did Cathal mac Finguine die?

Cathal mac Finguine died in 742.

What was Cathal mac Finguine's occupation?

Cathal mac Finguine was a king.

Sources & further reading

· Wikipedia: Cathal mac Finguine

· Wikidata: Q1563095

· DBpedia: Cathal mac Finguine

Cite this page

APA: Biography.guide. (2026). Cathal mac Finguine. https://biography.guide/cathal-mac-finguine/

MLA: "Cathal mac Finguine." Biography.guide, https://biography.guide/cathal-mac-finguine/.

Chicago: "Cathal mac Finguine." Biography.guide. https://biography.guide/cathal-mac-finguine/.

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