Events from the 6th century in Ireland.
- 3 September - Death of St. Mac Nisi, Bishop of Connor (according to some sources; see 507 above).
- 2 November - Death of Bishop Erc of Slane (according to some sources; see 512 above).
- 6 July - Death of St. Moninne (Darercae) at the convent she established at Killeavy (year varies according to sources).
- St. Ninnidh made the island of Inishmacsaint (island of plain Sorrell) in Lough Erne his headquarters around 523.
- 12 September or 30 December - Death of Bishop Ailbe of Emly (year varies according to sources; also given as 534 or 542).
- 531 (or 537)
- 12 September or 30 December - Death of Bishop Ailbe of Emly (year varies according to sources; also given as 527, 528 or 542).
- 12 September or 30 December - Death of Bishop Ailbe of Emly (year varies according to sources; also given as 527, 528 or 534).
- The foundation of the University of Tuaim Drecain (Tomregan) by the Synod of Drumceat on Magh Slécht.
- Columbanus and twelve companions set sail for France.
- ^ a b c d e f g h i j k l m n o p q r s t u v w x y Moody, T. W.; Martin, F. X.; Byrne, F. J., eds. (1989). A New History of Ireland. 8: A Chronology of Irish History. A Companion to Irish History, part I. Oxford University Press. ISBN 978-0-19-821744-2.
- ^ a b c d e f g h i j k l m n o p q r s t u v w x y List of Published Texts at CELT — University College Cork's Corpus of Electronic Texts project has the full list of Irish Annals.
- ^ a b Gratton-Flood, W. H. (1907), "The Twelve Apostles of Erin", The Catholic Encyclopedia, New York: Robert Appleton Company, I, retrieved 2008-02-09
- ^ "Annals of Cloontuskert Parish". Retrieved 2013-02-01.
- ^ Annals of Tigernach.
- ^ a b c d e Mac Annaidh, Séamas, ed. (2001). Illustrated Dictionary of Irish History. Dublin: Gill and Macmillan. ISBN 0717135365.
- ^ a b c d e McCarthy, Daniel P. (1998). The Chronology of the Irish Annals. Proceedings of the Royal Irish Academy, Section C, Archaeology, Celtic studies, history, linguistics, and literature, 98(6). Dublin: Royal Irish Academy.
- ^ Duffy, Seán (2005). The Concise History of Ireland. Dublin: Gill & Macmillan. ISBN 9780717138104.
- ^ Jones, Terry. "Brendan of Birr". Patron Saints Index. Archived from the original on 19 January 2008. Retrieved 2007-12-30.
- ^ Moody, T. W.; Martin, F. X., eds. (1967). The Course of Irish History. Cork: Mercier Press. p. 60.
- ^ a b c Byrne, Francis J. Irish Kings and High-Kings.
- ^ The Laud Synchronisms and Book of Leinster give him a reign of 18 years.
- ^ Lalor, Brian. Blue Guide, Ireland. p. 248. ISBN 0-7136-6130-5.
- ^ Roman Catholic Church (Catholic Online) and on the 1 August or 14 August in the Eastern Orthodox Church. His feast day is commemorated on 11 October in the