Four Masters report: While the Annals of Ulster give a detailed account and place him in Ragnall's army: The latter describes what is referred to as the Battle of Corbridge. See also Cotter family Ohthere of Hålogaland Notes References Primary sources Anglo-Saxon Chronicle, tr. Cogad Gáedel re Gallaib, ed. & tr. James Henthorn Todd (1867). Cogadh Gaedhel re Gallaibh: The War of the Gaedhil with the Gaill. London: Longmans, Green, Reader, and Dyer. Fragmentary Annals of Ireland, ed. & tr. Joan Radner (1978). Fragmentary Annals of Ireland. DIAS. edition and translation available at CELT. Historia Regum, ed. John Hodgson Hinde (1868). Symeonis Dunelmensis Opera et Collectanea. Publications of the Surtees Society. Volume 51. Durham: Andrews and Co. Secondary sources Downham, Clare, "The historical importance of Viking-Age Waterford", The Journal of Celtic Studies 4 (2004): 71–96. Downham, Clare, Viking Kings of Britain and Ireland: The Dynasty of Ívarr to A.D. 1014. Edinburgh: Dunedin. 2007. Also JSTOR. Lewis, Stephen M., "Óttar ’s Story – A Dublin Viking in Brittany, England and Ireland, A.D. 902-918". Steenstrup, Johannes, Normannerne, Volumes 3 and 4. Copenhagen: Forlagt af Rudolf Klein. 1882. Valante, Mary A., The Vikings in Ireland: Settlement, Trade and Urbanization. Four Courts Press. 2008. 918 deaths 10th-century rulers of the Kingdom of the Isles 10th-century Irish people Norse-Gaels Viking rulers People from Waterford (city) History of Waterford (city) Monarchs killed in action Year of birth unknown 10th-century Vikings