Note 481 — Chapter III · THE CONQUEST OF IRELAND. 795–1172.
Reading edition
Anglo-Norm. Poem (Michel), pp. 75–78. Cf. Gir. Cambr. and Four Masters as above. The latter say that “there was a challenge of battle between them” (i.e. between Roderic and the foreigners) “for three days, until lightning burned Ath-Cliath” [Dublin].