Events from the 11th century in

Ireland Ireland (, ; ; Ulster Scots dialect, Ulster-Scots: ) is an island in the North Atlantic Ocean, in Northwestern Europe. Geopolitically, the island is divided between the Republic of Ireland (officially Names of the Irish state, named Irelan ...

1000s

;1002 *

Máel Sechnaill mac Domnaill Máel Sechnaill mac Domnaill (), also called Máel Sechnaill Mór or Máel Sechnaill II (949 – 2 September 1022), was a King of Mide and High King of Ireland. His great victory at the Battle of Tara against Olaf Cuaran in 980 resulted i ...

, without a battle, yields to

Brian Boru Brian Boru (; modern ; 23 April 1014) was the High King of Ireland from 1002 to 1014. He ended the domination of the High King of Ireland, High Kingship of Ireland by the Uí Néill, and is likely responsible for ending Vikings, Viking invasio ...

King of Munster The kings of Munster () ruled the Kingdom of Munster in Ireland from its establishment during the Irish Iron Age until the High Middle Ages. According to Gaelic traditional history, laid out in works such as the ''Book of Invasions'', the earli ...

who, effectively becomes

High King of Ireland High King of Ireland ( ) was a royal title in Gaelic Ireland held by those who had, or who are claimed to have had, lordship over all of Ireland. The title was held by historical kings and was later sometimes assigned anachronously or to leg ...

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 Armagh ( ; , , " Macha's height") is a city and the county town of County Armagh, in Northern Ireland, as well as a civil parish. It is the ecclesiastical capital of Ireland – the seat of the Archbishops of Armagh, the Primates of All ...

, making an offering of twenty ounces of gold to the church and confirming to the apostolic see of

Saint Patrick Saint Patrick (; or ; ) was a fifth-century Romano-British culture, Romano-British Christian missionary and Archbishop of Armagh, bishop in Gaelic Ireland, Ireland. Known as the "Apostle of Ireland", he is the primary patron saint of Irelan ...

, ecclesiastical supremacy over the whole of

(as recorded in the

Book of Armagh The ''Book of Armagh'' or Codex Ardmachanus (ar or 61) (), also known as the ''Canon of Patrick'' and the ''Liber Ar(d)machanus'', is a 9th-century Irish art, Irish illuminated manuscript written mainly in Latin. It is held by the Library of Tri ...

). *Death of Mael Ruanaidh Ua Dubhda, King of Uí Fiachrach Muaidhe. ;1006 *Brian Boru makes a triumphal progress around

Leath Cuinn (Conn's Half) and (Mug's half) are legendary ancient divisions of Ireland, respectively north and south of a line corresponding to the Esker Riada running east–west from Dublin Bay to Galway Bay. The eponymous Conn and Mug were Conn Cétchat ...

, taking hostages from every northern state, thus demonstrating he is undisputed High King of Ireland. *Death of

Cú Connacht mac Dundach Known by his moniker, Cú Connacht mac Dundach ("The Hound of Connacht, Son of Dundach") (died 1006) was King of Síol Anmchadha, Ireland. He is described as King in the Annals of Innisfallen. He was killed in battle near Lorrha by the Muskerry ...

. ;1007 *The

Book of Kells The Book of Kells (; ; Dublin, Trinity College Library, MS A. I. 8 sometimes known as the Book of Columba) is an illustrated manuscript and Celts, Celtic Gospel book in Latin, containing the Gospel, four Gospels of the New Testament togeth ...

is probably stolen from the

Abbey of Kells The Abbey of Kells () or Kells Priory is a former monastery in Kells, County Meath, Ireland, north-west of Dublin. It was founded in the early 9th century, and the Book of Kells was kept there during the later medieval and early modern perio ...

in County Meath for several months.''

Annals of Ulster The ''Annals of Ulster'' () are annals of History of Ireland, medieval Ireland. The entries span the years from 431 AD to 1540 AD. The entries up to 1489 AD were compiled in the late 15th century by the scribe Ruaidhrí Ó Luin� ...

''. ;1008 * Gadhra Mór mac Dundach becomes chief of

Síol Anmchadha Síol Anmchadha () was a sub-kingdom or lordship of Uí Maine, and ruled by an offshoot of the Uí Maine called the Síol Anmchadha (''"the seed of Anmchadh"''), from whom the territory took its name. It was located in Connacht, Ireland. Hist ...

. *Death of

Madudan mac Gadhra Mór Madudan mac Gadhra Mór (died 1008) was the namesake and ancestor of the Ó Madden family. Madudan was the son of Gadhra Mór mac Dundach who fought at the Battle of Clontarf in 1014. The Annals of Ulster describe him as Chief of Síol Anmchadh ...

1010s

;1012 * King of Leinster,

Máel Mórda mac Murchada Malachy MacMurrough (; modern ; died 23 April 1014 AD) was King of Leinster, Ireland in the late 10th and early 11th century. Son of King Murchad mac Finn and brother of Gormflaith, he belonged to the northern Leinster dynasty of the Uí Dúnl ...

, rises in revolt against High King Brian Boru. ;1013 *Brian Boru campaigns against the

Viking Vikings were seafaring people originally from Scandinavia (present-day Denmark, Norway, and Sweden), who from the late 8th to the late 11th centuries raided, pirated, traded, and settled throughout parts of Europe.Roesdahl, pp. 9� ...

s of Dublin under their King

Sigtrygg Silkbeard Sigtrygg II Silkbeard Olafsson (also Sihtric, SitricÓ Corráin, p. 123 and Sitrick in Irish texts; or SigtrygWinn, p. 46 and SigtryggrMac Manus, p. 278 in Scandinavian texts) was a Hiberno-Norse king of Dublin (possibly AD 989–994; restor ...

and North Leinster led by Máel Mórda Mac Murchada, following attacks by them on Brian's ally

. ;1014 *23 April:

Battle of Clontarf The Battle of Clontarf () took place on 23 April 1014 at Clontarf, near Dublin, on the east coast of Ireland. It pitted an army led by Brian Boru, High King of Ireland, against a Norse- Irish alliance comprising the forces of Sigtrygg Silkbea ...

, at which

Norse–Gaels The Norse–Gaels (; ; ; , 'foreigner-Gaels') were a people of mixed Gaelic and Norse ancestry and culture. They emerged in the Viking Age, when Vikings who settled in Ireland and in Scotland became Gaelicised and intermarried with Gaels. The ...

led by Sigtrygg and men of North

Leinster Leinster ( ; or ) is one of the four provinces of Ireland, in the southeast of Ireland. The modern province comprises the ancient Kingdoms of Meath, Leinster and Osraige, which existed during Gaelic Ireland. Following the 12th-century ...

are defeated by Brian Boru, who is killed in the battle as is Máel Mórda mac Murchada. ;1015 * Gadhra Mór mac Dundach becomes chief of Uí Maine. ;1016 * Niall mac Eochada becomes king of Ulaid. Benjamin T. Hudson, ‘Niall mac Eochada (d. 1063)’, Oxford Dictionary of National Biography, Oxford University Press, 200
accessed 18 April 2008
/ref> ;1017 * Death of lawyer Cass Midhe.

1020s

;1021 * Death of

Mac Cú Ceanain Mac Cú Ceanain (died 1021) was King of Uí Díarmata. Biography A son of Cú Ceanain mac Tadhg, first name unknown, is noted as king of Uí Díarmata at his death in 1021. His father, though never king himself, had died fighting against the t ...

, King of

Uí Díarmata Uí Díarmata was a local kingdom located in what is now north County Galway. Origins The ruling dynasty took its name from King Diarmait Finn of Connacht (died 833), and the territory in turn was named after them. It seems to have been create ...

. ;1022 * Niall mac Eochada defeats the Dublin Norse at sea. * Death of

(Mael Seachnaill II), Overking of the

Uí Néill The Uí Néill (; meaning "descendants of Niall") are Irish dynasties that claim descent from Niall Noígíallach (Niall of the Nine Hostages), a historical King of Tara who is believed to have died around c. 405. They are generally divided ...

since 980, and High King of Ireland since the death of Brian Boru in 1014. ;1023 * Death of

Tadc mac Briain Tadc mac Briain (died 1023) was the son of Brian Boru and Echrad, daughter of Carlus mac Ailella of Uí Áeda Odba. Tadc had one son, Toirdelbach Ua Briain (Turlough O'Brien), with his wife Mór, daughter of Gilla Brigte Ua Maíl Muaid of Cenél F ...

, son of

;1024 and 1026 * Niall mac Eochada invades Dublin and take hostages. ;1027 * Death of Gadhra Mór mac Dundach, King of

and Uí Maine.

1030s

;1030 *Death of

Gormflaith (; ) is an Irish-language feminine given name meaning "blue princess" or "illustrious princess". is also a Irish mythology, Gaelic mythological national personification, personification of Ireland. The word ' is a compound of the Irish words ' ( ...

(b. 960), daughter of Murchad mac Find, King of Leinster, and third wife of Brian Ború. ;1035 * Ragnall ua Ímair, King of Waterford slain by

. ;1036 *Sigtrygg Silkbeard driven out of Dublin by

Echmarcach mac Ragnaill Echmarcach mac Ragnaill (died 1064/1065) was a dominant figure in the eleventh-century Irish Sea region. At his height, he reigned as king over Kingdom of Dublin, Dublin, the Kingdom of the Isles, Isles, and perhaps the Kingdom of the Rhinns, Rh ...

. ;1038 *First

cathedral A cathedral is a church (building), church that contains the of a bishop, thus serving as the central church of a diocese, Annual conferences within Methodism, conference, or episcopate. Churches with the function of "cathedral" are usually s ...

built in Dublin. *Echmarcach mac Ragnaill driven out of Dublin by

Ímar mac Arailt Ímar mac Arailt (died 1054) was an eleventh-century ruler of the Kingdom of Dublin and perhaps the Kingdom of the Isles. He was the son of a man named Aralt, and appears to have been a grandson of Amlaíb Cuarán, King of Northumbria and Dublin ...

, who then reigns as king.

1040s

;1041 *Death of Mac Beathaidh mac Ainmire, poet and

Chief Ollam of Ireland Chief may refer to: Title or rank Military and law enforcement * Chief master sergeant, the ninth, and highest, enlisted rank in the U.S. Air Force and U.S. Space Force * Chief of police, the head of a police department * Chief of the boat ...

. ;1042 *Death of Sigtrygg Silkbeard. ;1046 *Ímar mac Arailt is expelled from Dublin by Echmarcach mac Ragnaill, who then reigns as king.

1050s

;1052 * Echmarcach mac Ragnaill, King of Dublin is expelled from the town. ;1054 *30 April: A

tornado A tornado is a violently rotating column of air that is in contact with the surface of Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud. It is often referred to as a twister, whirlwind or cyclone, although the ...

hits Ros-deala (in modern County Westmeath)

1060s

;1064 *Donnchad, son of Brian Boru, dies in

Rome Rome (Italian language, Italian and , ) is the capital city and most populated (municipality) of Italy. It is also the administrative centre of the Lazio Regions of Italy, region and of the Metropolitan City of Rome. A special named with 2, ...

, after being dethroned by his nephew. ;1069 * Madudan Reamhar Ua Madadhan becomes Chief of

1070s

;1070 * Death of

Murchad mac Diarmata Murchad mac Diarmata (English: Murrough MacDermot) (died 1070) was a late eleventh-century ruler of the kingdoms of Leinster, Dublin, and the Isles. He was a member of the Uí Chennselaig, and a son of Diarmait mac Máel na mBó, King of Leins ...

, a king of Leinster and Dublin, and a son of Diarmait mac Mail na mBo. ;1072 * Death of Diarmait mac Mail na mBo, a king of Leinster and a contender for the title of High King of Ireland. He is one of the most important and significant Kings in Ireland in the pre-Norman era. ;1075 * In a campaign against the

and their allies in the north,

Muirchertach Ua Briain Muirchertach Ua Briain (anglicised as Murtaugh O'Brien; c. 1050 – c. 10 March 1119), son of Toirdelbach Ua Briain and great-grandson of Brian Boru, was King of Munster and later self-declared High King of Ireland. Background and early career ...

(son of Toirdelbach) is defeated by the

Airgíalla Airgíalla (; Modern Irish: Oirialla, English: Oriel, Latin: ''Ergallia'') was a medieval Irish over-kingdom and the collective name for the confederation of tribes that formed it. The confederation consisted of nine minor kingdoms, all indepen ...

near Áth Fhirdia (modern

Ardee Ardee (; , ) is a town and townland in County Louth, Ireland. It is located at the intersection of the N2, N52, and N33 roads. The town shows evidence of development from the thirteenth century onward but as a result of the continued develo ...

County Louth County Louth ( ; ) is a coastal Counties of Ireland, county in the Eastern and Midland Region of Republic of Ireland, Ireland, within the Provinces of Ireland, province of Leinster. Louth is bordered by the counties of County Meath, Meath to the ...

) with heavy loss. ;1079 * Five

Jews Jews (, , ), or the Jewish people, are an ethnoreligious group and nation, originating from the Israelites of History of ancient Israel and Judah, ancient Israel and Judah. They also traditionally adhere to Judaism. Jewish ethnicity, rel ...

come from "over the sea" bringing gifts to

Toirdelbach Ua Briain Toirdhealbhach ua Briain (old spelling: Toirdelbach ua Briain), anglicised ''Turlough O'Brien'' (100914 July 1086), was King of Munster and effectively High King of Ireland. A grandson of Brian Bóruma, Toirdelbach was the son of Tadc mac Briai ...

1080s

;1080 *Birth of

Saint Ceallach Cellach of Armagh or Celsus or Celestinus (1080–1129) was Archbishop of Armagh and an important contributor to the reform of the Irish church in the twelfth century. He is venerated in the Roman Catholic Church as Saint Cellach. Though a ...

(Celsus), (d 1129), future abbot of Armagh. He will preside at the

synod of Rathbreasail A synod () is a council of a Christian denomination, usually convened to decide an issue of doctrine, administration or application. The word ''synod'' comes from the Ancient Greek () ; the term is analogous with the Latin word . Originally, ...

1111 Year 1111 (Roman numerals, MCXI) was a common year starting on Sunday of the Julian calendar. Events By place Levant * Battle of Shaizar: Sultan Muhammad I Tapar appoints Mawdud, Mawdud ibn Altuntash, Turkic governor (''atabeg'') of Mos ...

. ;1081 *

Gruffudd ap Cynan Gruffudd ap Cynan (–1137) was List of rulers of Gwynedd, King of Gwynedd from 1081 until his death in 1137. In the course of a long and eventful life, he became a key figure in Welsh resistance to House of Normandy, Norman rule. As a descen ...

, Irish-born claimant to the

Kingdom of Gwynedd The Kingdom of Gwynedd (Medieval Latin: ; Middle Welsh: ) was a Wales in the Early Middle Ages, Welsh kingdom and a Roman Empire Succession of states, successor state that emerged in sub-Roman Britain in the 5th century during the Anglo-Saxon ...

, sails from

Waterford Waterford ( ) is a City status in Ireland, city in County Waterford in the South-East Region, Ireland, south-east of Ireland. It is located within the Provinces of Ireland, province of Munster. The city is situated at the head of Waterford H ...

St David's St Davids or St David's (, , "Saint David, David's Welsh toponymy, house”) is a St David's Cathedral, cathedral City status in the United Kingdom, city in Pembrokeshire, Wales. It lies on the River Alun, Pembrokeshire, River Alun and is ...

with an army of

Hiberno-Normans Norman Irish or Hiberno-Normans (; ) is a modern term for the descendants of Norman settlers who arrived during the Anglo-Norman invasion of Ireland in the 12th century. Most came from England and Wales. They are distinguished from the nativ ...

to enforce his claim. ;1086 *

becomes

and claimant to the Kingship of Ireland, and reigns until 1119. ;1088 *Birth of

Tairrdelbach Ua Conchobair Toirdhealbhach Mór Ua Conchobhair (old spelling: Tairrdelbach Mór Ua Conchobair; 1088 – 1156) anglicised Turlough Mór O'Conor, was King of Connacht (1106–1156) and High King of Ireland (ca. 1120–1156). Family background and early life ...

King of Connacht The Kings of Connacht were rulers of the ''cóiced'' (variously translated as portion, fifth, province) of Connacht, which lies west of the River Shannon, Ireland. However, the name only became applied to it in the early medieval era, being named ...

and High King of Ireland (d.

1156 Year 1156 ( MCLVI) was a leap year starting on Sunday of the Julian calendar. Events By place Levant * Spring – Raynald of Châtillon, prince of Antioch, makes an alliance with Thoros II (the Great), ruler of Armenian Cilic ...

1090s

;1095 *Death of Madudan Reamhar Ua Madadhan, Chief of

. *Birth of

Saint Malachy Malachy (; ; Modern ; ) (11th century in Ireland, 1094 – 2 November 1148 in Ireland, 1148) is an Irish saint who was Archbishop of Armagh, to whom were attributed several miracles and an alleged vision of 112 popes later attributed to t ...

(Middle Irish: Máel Máedóc Ua Morgair; Modern Irish: Maelmhaedhoc Ó Morgair). ;1096 * is consecrated the first

Bishop of Waterford The Bishop of Waterford was a medieval prelate, governing the Diocese of Waterford from its creation in the 11th century until it was absorbed into the new Roman Catholic Diocese of Waterford and Lismore in the 14th century. After the creation of ...

Saint Anselm of Canterbury Anselm of Canterbury OSB (; 1033/4–1109), also known as (, ) after his birthplace and () after his monastery, was an Italian Benedictine monk, abbot, philosopher, and theologian of the Catholic Church, who served as Archbishop of Canterb ...

References

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