The Iverni were a people of early Ireland first mentioned in Ptolemy's 2nd century Geography as living in the extreme south-west of the island. He also locates a "city" called Ivernis in their territory, and observes that this settlement has the same name as the island as a whole, Ivernia. It was probably once the name given to all the peoples of Ireland, but by Ptolemy's time had a more restricted usage applicable to the inhabitants of the south-west. These Iverni can be identified linguistically with the Érainn, a people attested in Munster and elsewhere in the early Middle Ages.
The Eóganachta were an Irish dynasty centred on Cashel which dominated southern Ireland from the 6/7th to the 10th centuries, and following that, in a restricted form, the Kingdom of Desmond, and its offshoot Carbery, to the late 16th century. By tradition the dynasty was founded by Conall Corc but named after his ancestor Éogan, the firstborn son of the semi-mythological 3rd-century king Ailill Aulom. This dynastic clan-name, for it was never in any sense a 'surname,' should more accurately be restricted to those branches of the royal house which descended from Conall Corc, who established Cashel as his royal seat in the late 5th century.
Crimthann Mór, son of Fidach, also written Crimthand Mór, was a semi-mythological king of Munster and High King of Ireland of the 4th century. He gained territory in Britain and Gaul, but died poisoned by his sister Mongfind. It is possible that he was also recognized as king of Scotland. This Crimthann is to be distinguished from two previous High Kings of Ireland of the same name, two Kings of Leinster, and another King of Munster, among others. Importantly, he is included in the Baile Chuinn Chétchathaig (summary), and is thus the last High King of Ireland from Munster until Brian Bóruma, over six hundred years later.
Irish clans are traditional kinship groups sharing a common surname and heritage and existing in a lineage-based society, originating prior to the 17th century. A clan included the chief and his patrilineal relatives; however, Irish clans also included unrelated clients of the chief. These unrelated clients and their agnatic descendants were ineligible to be elected chief, but nonetheless assumed the name of the leading lineage as a show of allegiance.
Dál Fiatach was a Gaelic dynastic-grouping and the name of their territory in the north-east of Ireland, which lasted throughout the Middle Ages until their demise in the 13th century at the hands of Normans. It was part of the over-kingdom of Ulaid, and they were its main ruling dynasty for most of Ulaid's history. Their territory lay in eastern County Down. Their capital was Dún Lethglaise (Downpatrick) and from the 9th century their main religious site was Bangor Abbey.
The Uí Ceinselaig, from the Old Irish "grandsons of Cennsalach", are an Irish dynasty of Leinster who trace their descent from Énnae Cennsalach, a supposed contemporary of Niall of the Nine Hostages. Énda was said to be a grandson of Bressal Bélach and a first cousin of Dúnlaing mac Énda Niada, eponymous ancestor of the rival Uí Dúnlainge.
The Uí Liatháin were an early kingdom of Munster in southern Ireland. They belonged the same kindred as the Uí Fidgenti, and the two are considered together in the earliest sources, for example The Expulsion of the Déisi (incidentally). The two have been given various origins among both the early or proto-Eóganachta and among the Érainn or Dáirine by different scholars working in a number of traditions, with no agreement ever reached or appearing reachable. It is entirely possible that they were the product of a combination of lineages from both these royal kindreds, or alternatively of another origin entirely.
Dáire Cerbba was a 4th-century Irish dynast who was evidently a king of late prehistoric central northern Munster, called Medón Mairtíne at the time. A frequently believed grandson of his, Crimthann mac Fidaig, was High King of Ireland and some British territories, and another descendant Bressal mac Ailello may have been King of Munster, and whose sister Angias was Queen of Lóegaire mac Néill, High King of Ireland. Finally, another descendant, according to Geoffrey Keating, was a king of Munster named Cormac, son of Ailill, son of Eochaid, son of Dáire Cearb.
The Dáirine, later known dynastically as the Corcu Loígde and associated, were the proto-historical rulers of Munster before the rise of the Eóganachta in the 7th century AD. They were derived from or closely associated with the Darini of Ptolemy and were also related to the Ulaid and Dál Riata of Ulster and Scotland. Their ancestors appear frequently in the Ulster Cycle. In historical times the Dáirine were represented, as stated, by the Corcu Loígde, the Uí Fidgenti and Uí Liatháin, as well as a few other early historical kindreds of both Munster and Ulster. In ancient genealogical schemes, the historical Dál Fiatach of Ulaid also belong to the Dáirine.
Óengus Bolg, son of Lugaid, son of Mac Nia, son of Mac Con, son of Lugaid Loígde, son of Dáire Doimthech, was a king of the Corcu Loígde, and an ancestor of the Eóganachta "inner circle" through his daughter Aimend, married to Conall Corc. This serves to legitimize the coming rule of the Eóganachta in Munster, still ruled by the powerful Dáirine, of whom the Corcu Loígde are the sovereign royal sept.
Ailill Flann Bec, son of Fiachu Muillethan, was an Irish dynast belonging to the Deirgtine, the proto-historical ancestors of the historical Eóganachta dynasties of Munster. He was the father of Luigthech, also known as Lugaid, and thus the grandfather of Conall Corc. Another son of Ailill Flann Bec may have been Dáire Cerbba, but there is evidence against this.
Deda mac Sin was a prehistoric king of the Érainn of Ireland, possibly of the 1st century BC. Variant forms or spellings include Ded, Dedu, Dedad, Degad, Dega, Dego, Deguth and Daig, with some of these occurring as genitives although usage is entirely unsystematic, besides the rare occurrence of the obvious genitive Dedaid.
Dáire Drechlethan "Dáire of the Broad Face" is a king of Tara listed in the Old Irish Baile Chuinn Chétchathaig. His identity with any king of Tara from Irish legend remains uncertain because his epithet is unique in the surviving corpus related to Tara.
Dáire is an Old Irish name which fell out of use at an early period, remaining restricted essentially to legendary and ancestral figures, usually male. It has come back into fashion since the 18th century. The anglicised form of this name is Dara.
The Kingdom of Leinster was a kingdom of Gaelic Ireland which existed in the east of the island from the Irish Iron Age until the 17th century Early Modern Ireland. According to traditional Irish history found in the Annals of the Four Masters, the kingdom was founded as the territory of the Laighin, a Heremonian tribe of Irish Gaels. Some of the early kings of Leinster were also High Kings of Ireland and Kings of Tara, such as Úgaine Mór, Labraid Loingsech and Cathair Mór.
Domnall Gerrlámhach, also known as Domnall Gerrlámhach Ua Briain, Domnall mac Muirchertaig, and Domnall Ua Briain, was an obscure twelfth-century Uí Briain dynast and King of Dublin. He was one of two sons of Muirchertach Ua Briain, High King of Ireland. Domnall's father appears to have installed him as King of Dublin in the late eleventh or early twelfth century, which suggests that he was his father's successor-designate. Although Domnall won a remarkable victory in the defence of the Kingdom of Dublin in the face of an invasion from the Kingdom of Leinster in 1115, he failed to achieve the successes of his father. After his final expulsion from Dublin at the hands of Toirdelbach Ua Conchobair, King of Connacht, and the death of his father, Domnall disappears from record until his own death in 1135. He was perhaps survived by two sons.
Diarmait mac Énna meic Murchada was an early twelfth-century ruler of the kingdoms of Leinster and Dublin.
Énna Mac Murchada, or Enna Mac Murchada, also known as Énna mac Donnchada, and Énna mac Donnchada mic Murchada, was a twelfth-century ruler of Uí Chennselaig, Leinster, and Dublin. Énna was a member of the Meic Murchada, a branch of the Uí Chennselaig dynasty that came to power in Leinster in the person of his paternal great-grandfather. Énna himself gained power following the death of his cousin Diarmait mac Énna. Throughout much of his reign, Énna acknowledged the overlordship of Toirdelbach Ua Conchobair, King of Connacht, although he participated in a failed revolt against the latter in 1124 before making amends. When Énna died in 1126, Toirdelbach successfully took advantage of the resulting power vacuum.
Domnall mac Murchada, also known as Domnall mac Murchada meic Diarmata, was a leading late eleventh-century claimant to the Kingdom of Leinster, and a King of Dublin. As a son of Murchad mac Diarmata, King of Dublin and the Isles, Domnall was a grandson of Diarmait mac Máel na mBó, King of Leinster, and thus a member of the Uí Chennselaig. Domnall was also the first of the Meic Murchada, a branch of the Uí Chennselaig named after his father.
