Collas.—They were sons of Eochaidh Domlen, who made themselves famous by their warlike exploits, and infamous by their destruction of the palace of Emania.
Groans.—Bede, Eccl. Hist. c. 12.
Sources.—The Abbé M'Geoghegan says that there is a very ancient registry in the archives of the house of Sales, which mentions that the King of Ireland remained some time in the Castle of Sales. See his History, p. 94.