Saga Vikings and Saxons
Vikings
In 793 came the first recorded Viking raid, where ‘on the Ides of June the harrying of the heathen destroyed God’s church on Lindisfarne, bringing ruin and slaughter’ (The Anglo-Saxon Chronicle).
These ruthless pirates continued to make regular raids around the coasts of England, looting treasure and other goods, and capturing people as slaves. Monasteries were often targeted, for their precious silver or gold chalices, plates, bowls and crucifixes.
Gradually, the Viking raiders began to stay, first in winter camps, then settling in land they had seized, mainly in the east and north of England.
Outside Anglo-Saxon England, to the north of Britain, the Vikings took over and settled Iceland, the Faroes and Orkney, becoming farmers and fishermen, and sometimes going on summer trading or raiding voyages. Orkney became powerful, and from there the Earls of Orkney ruled most of Scotland. To this day, especially on the north-east coast, many Scots still bear Viking names.
To the west of Britain, the Isle of Man became a Viking kingdom. The island still has its Tynwald, or ting-vollr (assembly field), a reminder of Viking rule. In Ireland, the Vikings raided around the coasts and up the rivers. They founded the cities of Dublin, Cork and Limerick as Viking strongholds.
Meanwhile, back in England, the Vikings took over Northumbria, East Anglia and parts of Mercia. In 866 they captured modern York (Viking name: Jorvik) and made it their capital. They continued to press south and west. The kings of Mercia and Wessex resisted as best they could, but with little success until the time of Alfred of Wessex, the only king of England to be called ‘the Great’.
https://www.history.org.uk/primary/resource/3867/the-vikings-in-britain-a-brief-history
Some great work here.