Barid mac Ímair, King of Dublin

http://fmg.ac/Projects/MedLands/IRELAND.htm#_Toc389126206

a) BARDR [Barith] (-881). He succeeded his father as King [of Dublin]. The Annals of Innisfallen record in 873 that "Barid with a great fleet from Ath Cliath [went] by sea westwards, and he plundered Ciarraigne Luachra under ground [i.e. the raiding of the caves]"[1172]. The Chronicon Scottorum records the death in 881 of "Barith son of Imar, head of the Norsemen…by a miracle of God and Ciannan"[1173]. The Annals of Ulster record in 881 that "the oratory of Cianan was destroyed by the foreigners…afterwards Barith, a great despot of the Norsemen, was killed by St. Ciannan"[1174].

[1172] Mac Airt, S. (trans.) (1951) Annals of Innisfallen (Dublin), available at <http://www.ucc.ie/celt/published/T100016/index.html&gt; (ed. Färber, B.) (26 Jan 2008), 873.3, p. 135. [1173] Chronicon Scottorum, 881, p. 141. [1174] Annals of Ulster, 873.3, p. 329.

see also https://en.wikipedia.org/wiki/B%C3%A1rid_mac_%C3%8Dmair#cite_note-D...