Editing Amlaíb Cuarán (section)

==Background==
{{further|Kingdom of Dublin|Viking Age}}
The earliest records of attacks by [[Vikings]] in Britain or Ireland are at the end of the eighth century. The monastery on [[Lindisfarne]], in the kingdom of [[Northumbria]], was sacked on 8 June 793, and the monastery of [[Iona]] in the kingdom of the [[Picts]] was attacked in 795 and 802. In Ireland [[Rathlin Island]], off the north-east coast, was the target in 795, and so too was [[St Patrick's Island]] on the east coast in 798. [[Isle of Portland|Portland]] in the kingdom of [[Wessex]] in south-west Britain was attacked during the reign of King [[Beorhtric of Wessex]] (ruled from 786 to 802).<ref>Keynes, "Vikings in England", pp. 50&ndash;51; Ó Corráin, "Ireland, Wales, Man, and the Hebrides", pp. 83&ndash;85.</ref>

These raids continued in a sporadic fashion throughout the first quarter of the ninth century. During the second quarter of the century the frequency and size of raids increased and the first permanent Viking settlements (called [[longphorts]] in Ireland) appeared.<ref>Keynes, "Vikings in England", pp. 51&ndash;52; Ó Corráin, "Ireland, Wales, Man, and the Hebrides", pp. 84&ndash;89.</ref>