Bressal mac Ailello explained

Bressal mac Ailello Thassaig was an early king of the Uí Liatháin who may also have been King of Munster.^[1] His sister, Angias, was the Queen of Lóegaire mac Néill, High King of Ireland.^[2]

He was the son of Ailill Tassach, ancestor of the Uí Thassaig, an important sept of the Uí Liatháin.^[3]

References

• Francis John Byrne. Irish Kings and High-Kings. Four Courts Press. 2nd revised edition, 2001.
• Geoffrey Keating, with David Comyn and Patrick S. Dinneen (trs.), The History of Ireland by Geoffrey Keating. 4 Vols. London: David Nutt for the Irish Texts Society. 1902–14. Hosted elsewhere: The Keating Genealogies
• Michael A. O'Brien (ed.) with intr. by John V. Kelleher, Corpus genealogiarum Hiberniae. Dublin Institute for Advanced Studies. 1976. / partial digital edition: Donnchadh Ó Corráin (ed.), Genealogies from Rawlinson B 502. University College, Cork: Corpus of Electronic Texts. 1997.
• Whitley Stokes (ed. & tr.). The Tripartite Life of Patrick. London: Eyre and Spottiswoode for Her Majesty's Stationery Office. 1887.

Notes and References

1. Byrne, pp. 177–8; from Keating, Book I. p. 129
2. Stokes, pp. 47, 557
3. Ó Corráin, p. 229