Picts. Áed seized this opportunity, plundering and burning all the Norse bases (longphorts) in the northern part of Ireland. In 868 Áed again was confronted by a coalition of his Irish rivals and the Norse-Gaels. According to the Annals of Ulster he defeated "the Uí Neíll of Brega, and the Laigin, and a large force of the foreigners" in a battle at a place called Cell Ua nDaigri. Flann of Brega was killed in this battle. This battle has been depicted as a decisive victory over the Norse. Amlaib and Ímar were, however, very active in Ireland during the following years and seem to have suffered little harm to their ambition or strength. It is probably more accurate to regard this battle as a victory over the southern Uí Neíll and Leinster. In 870 Áed followed up his victory from 868 by invading Leinster with the support of his new ally Cerball of Osraige, and then invaded Leinster again in 874. Áed Findliath died on 20 November 879, at Druim Inasclainn: in the territory of Conaille. On that occasion he was described as "king of Tara" (rex Temorie), although a poem from the annals refers to him as "over-king of the Irish" (). He was buried at either Armagh or Dromiskin. Notes References Ó Cróinín, Dáibhí, Early Medieval Ireland: 400–1200. Longman, London, 1995. 879 deaths High Kings of Ireland Kings of Ailech People from County Donegal 9th-century Irish monarchs Year of birth unknown