Notes for Fargallus De Munster/Fergal/Fergail: Maelduin's son, Fearghal became the 156th Monarch of all Ireland. His name is also noted as "Fergus," "Fargal," and "Fergal mac Maeleduin." Also known as Fergal MacMael Duin O'Neill. He assumed power of Ireland in the year 709 A.D. Another source (O'Flaherty) places his accession at 711. He was killed in the battle of Almhain (also known as Allen) in the year 718, according to the Annals.
"This battle is noticed in the Annals of Ulster at the year 721, and in the Annals of Tighernach at 722, which is the true year, as indicated by the criteria which he furnishes, iii. Id. Dec. fer. 6, Cylo Solis iii. Luna i. The Annals of Clonmacnoise notice it under the year 720, as follows: 'A.D. 717 Before King Fohartagh began his reign, the battle of Allone was fought, wherein King Ferall was slain by the Lynstermen, on Friday the 3rd of the Ides of December, in the year of our Lord, 720. ...'" He was killed by "Dunchandh, son of Murchadh, and Aedh, son of Colgan, an heir presumptive to the sovereignty." [Annals, Age of Christ, 718 (page 317).] He was also known as the King of the Kinel-Owen. [Annals, Age of Christ, 718, footnote a.] The Chart indicates that he married Aithiochte, daughter of Cein O'Connor, King of Connaught. [Chart, at 1.]
Children of Fargallus De Munster/Fergal/Fergail and Aitheachda O Connor are: