A Viking fortress of major importance has been discovered at Annagassan, County Louth in Ireland. The extensive site, which was uncovered following targeted research excavation, is believed to be the infamous Viking base of Linn Duchaill. A defensive rampart, consisting of a deep ditch and a bank, was excavated and while radio carbon dates are awaited to confirm the date the rampart has all the appearances of the main fortification of the Viking Fortress.
Linn Duchaill was founded by Vikings in 841 AD – according to medieval Irish annals, the Norsemen used this place to raid throughout Ireland, trade good and export Irish slaves. A battle was recorded as having taken place her in 851, and in 927 the Vikings abandoned Linn Duchaill in order to move to Britain.
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