11th century in Ireland
events from the 11th century in Ireland
Events from the 11th century in Ireland.
1000s
1002
Máel Sechnaill mac Domnaill, without a battle, yields to Brian Boru, King of Munster who, effectively becomes High King of Ireland and reigns until his death in 1014.
Brian Boru makes an expedition to the north to take hostages from the northern states.
1005
Brian Boru makes a second expedition to the north to take hostages from the northern states: during this expedition, he visits Armagh, making an offering of twenty ounces of gold to the church and confirming to the apostolic see of Saint Patrick, ecclesiastical supremacy over the whole of Ireland (as recorded in the Book of Armagh).
Death of Mael Ruanaidh Ua Dubhda, King of Uí Fiachrach Muaidhe.
1006
Brian Boru makes a triumphal progress around Leath Cuinn, taking hostages from every northern state, thus demonstrating he is undisputed High King of Ireland.
Death of Cú Connacht mac Dundach.
1007
The Book of Kells is probably stolen from the Abbey of Kells in County Meath for several months.
1008
Gadhra Mór mac Dundach becomes chief of Síol Anmchadha.
Death of Madudan mac Gadhra Mór.
“11th century in Ireland” enters the record as events from the 11th century in Ireland. Crown Archives preserves that source wording while asking what 11th, century and Ireland can confirm, complicate or overturn.
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“11th century in Ireland” is worth following because a concise public description often conceals a longer documentary argument. Here, 11th, century and Ireland provides the most credible route into that argument.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Apr 11, 2025. The linked authority identifier is Q4548017. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1002, 1014, 1005 and 1006.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “11th century in Ireland” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.