List of Irish kingdoms


This article lists some of the attested Gaelic kingdoms of early medieval Ireland prior to the Norman invasion of 1169-72.
For much of this period, the island was divided into numerous clan territories and kingdoms. These túatha often competed for control of resources and thus they continually grew and shrank. In addition to kingdoms or túatha, Gaelic Ireland was also divided into five prime overkingdoms. These were Ulaid, Connacht, Laighin, Mumhan and Mide.
After the Norman invasion, much of the island came under the control of the Lordship of Ireland, although some parts remained under the control of Gaelic dynasties. After 1350, Norman control began to weaken, and a "Gaelic resurgence"
took place which resulted in the direct influence of the Parliament of Ireland shrinking to an area known as The Pale by 1500. In 1541, the Kingdom of Ireland was established by Henry VIII, and the Tudor conquest of Ireland commenced. The repudiation of the terms of the Treaty of Mellifont by the Crown resulted in the Nine Years War and the Flight of the Earls, which marked the end of the Gaelic order.

Ulster

Earliest times

Earliest times

  • Ebdani, Eblani or Blanii

    Early Christian

  • Ciannachta
  • Southern Uí Néill
  • Brega
  • Lagore
  • Cnogba
  • Tethbae (Old Irish pronunciation: ; also spelled Tethba, often anglicised Teffia
  • Annaly
  • Cairpre Gabra

    Leinster

Earliest times

Earliest times

  • Gangani or Concani in Counties Limerick and Clare; also lived in Wales - Ptolemy calls the Llŷn Peninsula the "Promontory of the Gangani"
  • Iverni in County Cork, later known as the Érainn
  • Luceni in Counties Kerry and Limerick
  • Usdiae, Udiae or Vodiae in Counties Waterford and Cork, possibly related to the later Osraige
  • Uterni in Cork
  • Vellabori or Velabri in Kerry

    Early Christian

  • Builg
  • Corcu Baiscind
  • Corcu Duibne
  • Corcu Loígde
  • Dáirine
  • Dál gCais
  • Deirgtine
  • Déisi
  • Eóganachta
  • Érainn
  • Iarmuman
  • Mairtine
  • Múscraige
  • Uí Fidgenti
  • Uí Liatháin

    From the 12th century

  • Kingdom of Desmond
  • Kingdom of Thomond
  • Kingdom of Ormond

    Connacht

Earliest times

  • Auteini in County Galway, identified with the later Uaithne
  • Nagnatae in County Mayo and County Sligo, possibly linked with the Ol nÉcmacht; Cóiced Ol nEchmacht was an ancient name for Connacht.

    Early Christian

  • Aidhne or Uí Fiachrach Aidhne
  • Breifne
  • Conmaicne Mara
  • Connachta
  • Corco Moga
  • Delbhna
  • Delbhna Nuadat
  • Delbhna Tir Dha Locha
  • Fir Domnann
  • Hy Briuin Ai
  • Hy Diarmata
  • Hy Fiachrach Aidhne
  • Hy Fiachrach Fionn
  • Hy Fiachrach Muaidhe
  • Hy-Many
  • Iar Connacht
  • Kinela
  • Moylurg
  • Muintir Murchada
  • Partraige
  • Síol Anmchadha
  • Síol Muirdeach
  • Soghan
  • Tyrconnell
  • Uí Fiachrach

    From the 12th century

  • Clanricarde
  • Mac William Íochtar
  • West Breifne