Events from the 11th century in Ireland.
- 1002
- 1005
- 1006
- Brian Boru makes a triumphal progress around Leath Cuinn, taking hostages from every northern state, thus demonstrating he was undisputed King of Ireland.[3]
- Death of Cú Connacht mac Dundach.
- 1007
- 1008
- 1012
- 1013
- 1014
- 23 April: Battle of Clontarf, at which the Vikings and men of North Leinster are defeated by Brian Boru, who is killed in the battle[5] as is Máel Mórda mac Murchada.[6]
- 1015
- 1016
- 1017
- 1021
- 1022
- Niall mac Eochada defeats the Dublin Norse at sea.[8]
- Death of Mael Seachnaill II, Overking of the Uí Néill, who had reigned since 980,[2] and who became King of Ireland on the death of Brian Boru in 1014 and ruled until his death.[9]
- 1023
- 1024 and 1026
- Niall mac Eochada invades Dublin and take hostages.[7]
- 1027
- 1030
- Death of Gormflaith (b. 960), daughter of Murchad mac Find, King of Leinster, and third wife of Brian Ború.
- 1035
- 1036
- 1038
- 1041
- 1042
- Death of Sigtrygg Silkbeard.[6]
- 1046
- Ímar mac Arailt was expelled from Dublin by Echmarcach mac Ragnaill, who then reigns as king.
- 1052
- Echmarcach mac Ragnaill, King of Dublin is expelled from the town.
- 1054
- 30 April: A tornado hits Ros-deala (in modern County Westmeath)
- 1064
- Donnchad, son of Brian Boru, dies in Rome, after being dethroned by his nephew.[10]
- 1069
- 1070
- 1072
- Death of Diarmait mac Mail na mBo, a king of Leinster and a contender for the title of High King of Ireland. He was one of the most important and significant Kings in Ireland in the pre-Norman era.
- 1075
- 1079
Moody, T. W.; Martin, F. X., eds. (1967). The Course of Irish History. Cork: Mercier Press. p. 104.
Duffy, Seán (2005). The Concise History of Ireland. Dublin: Gill & Macmillan.
Moody, T. W.; Martin, F. X., eds. (1967). The Course of Irish History. Cork: Mercier Press. p. 113.
Moody, T. W.; Martin, F. X., eds. (1967). The Course of Irish History. Cork: Mercier Press. p. 114.
Mac Annaidh, S., ed. (2001). Illustrated Dictionary of Irish History. Dublin: Gill and Macmillan.
Moody, TW; Martin, FX, eds. (1967). The Course of Irish History. Cork, Ireland: The Mercier Press. p. 115.
Moody, TW; Martin, FX, eds. (1967). The Course of Irish History. Cork, Ireland: The Mercier Press. p. 122.
Moody, TW; Martin, FX, eds. (1967). The Course of Irish History. Cork, Ireland: The Mercier Press. p. 118.