
AD 841 · Viking longphort
Viking ships on the Louth coast
The Annals of Ulster record a naval camp at Linn Duachaill in 841, the same year they record one at Dublin. From this base, raiders attacked peoples and churches inland. Linn Duachaill is associated with Annagassan, at the River Glyde, south of Dundalk. It belongs in the story of the wider coast; it is a separate place from Dundalk and should not be used to give the town a Viking founding date.↗1
The bay’s wider seaways connected local lives to the Viking world, while Dundalk’s later urban origins followed a different course.









