Cathal mac Tadg was

King of Connacht The Kings of Connacht were rulers of the ''cóiced'' (variously translated as portion, fifth, province) of Connacht, which lies west of the River Shannon, Ireland. However, the name only became applied to it in the early medieval era, being named ...

, 973. Cathal only briefly succeeded his brother. Murchadh Glunillar ua Flaithbheartach, King of Aileach, invaded Connacht and gave battle to Cathal at Ceis Corran. Cathal was killed as were some of his prime vassals - ''"Geibheannach, son of Aedh, lord of Ui-Maine; Tadhg, son of Muircheartach, chief of Ui-Diarmada; Murchadh, son of Flann, son of Glethneachan, chief of Clann-Murchadha; and Seirridh Ua Flaithbheartaigh, with a countless number along with them."'' Murchadh totally plundered Connacht afterwards, while Cathal was succeeded as King of Connacht by Cathal mac Conchobar mac Taidg.

References

* ''Annals of Ulster'' a
CELT: Corpus of Electronic Texts
a
University College Cork
* ''Annals of the Four Masters'' a

a
University College Cork
* ''Annals of Innisfallen'' a

a
University College Cork
* Byrne, Francis John (2001), Irish Kings and High-Kings, Dublin: Four Courts Press, * Charles-Edwards, T. M. (2000), ''Early Christian Ireland'', Cambridge: Cambridge University Press,

of McCarthy's synchronisms at

Trinity College Dublin , name_Latin = Collegium Sanctae et Individuae Trinitatis Reginae Elizabethae juxta Dublin , motto = ''Perpetuis futuris temporibus duraturam'' (Latin) , motto_lang = la , motto_English = It will last i ...

. 10th-century births 973 deaths People from County Roscommon O'Conor dynasty 10th-century kings of Connacht {{Ireland-royal-stub