Related Archive: Hiberno-Norse Dublin

Glún Iairn’s Fatal Cup

Archived: 26 October 2026

Abstract

The annals for 989 preserve a year of abrupt reversals. Ireland was not a single kingdom, nor was its political life divided neatly between ‘Irish’ and ‘Viking’. Kingship was exercised through shifting local alliances, hostage-taking, tribute, raiding and control of major churches. The most striking entry is the death of Glún Iairn, king of the foreigners of Dublin, killed while drunk by his own slave. Yet 989 mattered just as much in the north: Dún Lethglaise, modern Downpatrick, was plundered and burned; a ruler of the Isles was killed in Dál Riata; and the successor of St Patrick at Armagh

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979 CE

Domnall Claen’s Captivity

Archived: 26 October 2026

Abstract

For Ireland, 979 is a year best approached through a small but unusually revealing cluster of annalistic notices. No surviving source supplies a continuous narrative, and none explains every motive or consequence. Yet the recorded capture of Domnall Claen, king of Leinster, by the foreigners of Dublin exposes the political weight of the Hiberno-Norse town at the mouth of the Liffey. Deaths and killings among rulers in Offaly, Dál Araide and Cenél Conaill show, at the same time, that power remained fragmented across many regional kingdoms. Notices of a Kildare church leader, a Clonmacnoise scholar-cleric and a foremost man of

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