Sitric the Blind
Sitric the Blind, one of the Norse invaders of Ireland, arrived at Dublin with a "prodigious royal fleet" in 888. In 902 he retreated to Scotland; but in 918 he recovered Dublin, and in 919 fought the battle of Kilmashogue with Niall Glundubh. He left Ireland in 920, and in 925 was King of the Northumbrians. He is supposed to have died in 927.
Sources
144. Gaedhil with the Gaill, Wars of the, or the Invasions of Ireland by the Danes: Rev. James H. Todd, D.D. (Master of the Rolls Series.) London, 1867.