Battle of Corbridge
The battle was referenced in the Annals of Ulster and the Chronicle of the Kings of Alba. The battle was fought between Norse-Gael leader Ragnall ua Ímair and his allies against the forces of Constantín mac Áeda, King of Scotland together with those of Ealdred I of Bamburgh who had previously been driven from his lands by Ragnall. The Historia de Sancto Cuthberto adds that English fought alongside Norsemen. The Annals of Ulster informs us that the Norse army divided itself into four columns, in one of which may have been Jarl Ottir Iarla, a long-time ally of Ragnall.
The Scots destroyed the first three columns but were ambushed by the last. This unit had remained hidden behind a hill and was commanded by Ragnall. The Scots, however, managed to escape without disaster. It seems that it was an indecisive engagement, although it did allow Ragnall to establish furher himself in Northumbria. In 919, Ragnall descended on York where he took the city and had himself proclaimed king. The Bernicians remained under him, although Ealdred I of Bamburgh and Domnall I, king of Strathclyde, paid homage to the king of England.
- Annals of Ulster, ed. & tr. Seán Mac Airt and Gearóid Mac Niocaill (1983). The Annals of Ulster (to AD 1131). Dublin: DIAS. Lay summary – CELT (2008).
- Howorth, Henry H. (January 1911). "Ragnall Ivarson and Jarl Otir". The English Historical Review. 26 (101): 1–19. doi:10.1093/ehr/xxvi.ci.1. Also JSTOR.
- Stenton, Sir Frank M. Anglo-Saxon England Third Edition. Oxford University Press, 1971.