Country history · Europe

History of Ireland

62 recorded states lay in what is now Ireland, from Auteini (100 CE) to Ireland. 2 of them have a full profile, and 2 outside powers ruled here.

ProfileState (capital or seat)24 without a known seat not shownOpen in the atlas →

Profiles

Empires that ruled here

Timeline

2nd century

  1. Auteini100 CE – 200 CE · chiefdom
  2. Brigantes (Ireland)100 CE – 200 CE · chiefdom
  3. Cauci100 CE – 200 CE · chiefdom
  4. Coriondi100 CE – 200 CE · chiefdom
  5. Eblani100 CE – 200 CE · chiefdom
  6. Erdini100 CE – 200 CE · chiefdom
  7. Gangani (Ireland)100 CE – 200 CE · chiefdom
  8. Iverni100 CE – 200 CE · chiefdom
  9. Manapii100 CE – 200 CE · chiefdom
  10. Nagnatae100 CE – 200 CE · chiefdom
  11. Usdiae100 CE – 200 CE · chiefdom
  12. Velabri100 CE – 200 CE · chiefdom
  13. Vennicnii100 CE – 200 CE · chiefdom

5th century

  1. Corcu Loigde400 CE – 1200 CE · kingdom
  2. Kingdom of Leinster400 CE – 1171 CE · kingdom
  3. Kingdom of Munster400 CE – 1118 CE · kingdom
  4. Kingdom of Osraige400 CE – 1541 CE · kingdom
  5. Ciarraige Luachra450 CE – 1200 CE · kingdom
  6. Deisi Muman450 CE – 1200 CE · kingdom
  7. Kingdom of Ailech450 CE – 1185 CE · kingdom
  8. Kingdom of Airgialla450 CE – 1591 CE · kingdom
  9. Kingdom of Connacht450 CE – 1474 CE · kingdom
  10. Kingdom of Eile450 CE – 1552 CE · kingdom
  11. Kingdom of Loigis450 CE – 1556 CE · kingdom
  12. Kingdom of Ui Failge450 CE – 1556 CE · kingdom
  13. Kingdom of Ui Maine450 CE – 1585 CE · kingdom
  14. Ui Chennselaig450 CE – 1171 CE · kingdom
  15. Ui Fidgenti450 CE – 1200 CE · kingdom

6th century

  1. High Kingship of Ireland500 CE – 1198 CE · kingdom
  2. Kingdom of Iarmumu500 CE – 850 CE · kingdom
  3. Kingdom of Tethba500 CE – 1200 CE · kingdom
  4. Kingdom of Tir Chonaill500 CE – 1607 CE · kingdom
  5. Kingdom of Mide550 CE – 1173 CE · kingdom

7th century

  1. Kingdom of Brega600 CE – 1100 CE · kingdom

8th century

  1. Kingdom of Breifne700 CE – 1256 CE · kingdom

9th century

  1. Kingdom of Dublin853 CE – 1171 CE · kingdom

10th century

  1. Kingdom of Waterford914 CE – 1170 CE · kingdom
  2. Kingdom of Limerick922 CE – 977 CE · kingdom

12th century

  1. Kingdom of Moylurg1100 CE – 1585 CE · kingdom
  2. Kingdom of Desmond1118 CE – 1596 CE · kingdom
  3. Kingdom of Thomond1118 CE – 1543 CE · kingdom
  4. Angevin Empire1154 CE – 1214 CE · other
  5. Lordship of Ireland1171 CE – 1542 CE · other
  6. Lordship of Leinster1171 CE – 1247 CE · county
  7. Lordship of Meath1172 CE – 1241 CE · county

13th century

  1. Iar Connacht1225 CE – 1585 CE · kingdom
  2. East Breifne1256 CE – 1607 CE · kingdom
  3. West Breifne1256 CE – 1605 CE · kingdom

14th century

  1. Earldom of Ormond1328 CE – 1716 CE · county
  2. Earldom of Desmond1329 CE – 1583 CE · county
  3. Clanricarde1333 CE – 1543 CE · county
  4. Mac William Iochtar1333 CE – 1603 CE · county
  5. Lordship of Sligo1384 CE – 1585 CE · kingdom

16th century

  1. Kingdom of Ireland1542 CE – 1800 CE · profile

17th century

  1. Confederate Ireland1642 CE – 1652 CE · other
  2. Commonwealth of England1649 CE – 1660 CE · republic
  3. The Protectorate1653 CE – 1659 CE · republic

19th century

  1. United Kingdom of Great Britain and Ireland1801 CE – 1922 CE · profile

20th century

  1. Irish Republic1919 CE – 1922 CE · republic
  2. Southern Ireland1921 CE – 1922 CE · other
  3. Irish Free State1922 CE – 1937 CE · other
  4. Ireland1937 CE – present · republic

In the encyclopedia

Shared histories

States that also lay in other present-day countries:

States of British Isles → States of France and the Low Countries → All country histories →

Cite this page
APA
The Epoch Institute. (2026). History of Ireland. In The Epoch Institute States Register. https://the-epoch-institute.org/countries/ireland
MLA
“History of Ireland.” The Epoch Institute States Register, The Epoch Institute, 2026, https://the-epoch-institute.org/countries/ireland. Accessed .
Chicago
The Epoch Institute. “History of Ireland.” The Epoch Institute States Register. 2026. https://the-epoch-institute.org/countries/ireland.
Harvard
The Epoch Institute (2026) ‘History of Ireland’, The Epoch Institute States Register. Available at: https://the-epoch-institute.org/countries/ireland (Accessed: ).