Prehistoric Irish battles

This is a list of battles recorded in the Annals of the Four Masters, written in the 17th century, as taking place in prehistoric Ireland. Many of the battles listed are purely mythological, and none are historically reliable. Other Irish annalistic and chronicle sources differ in their chronologies.

Anno Mundi

 * Reign of Ceasair, 2242-???? - No warfare.
 * Reign of Parthalon, 2520–50
 * 2530 - Magh Ithe, first recorded battle in Ireland.


 * Reign of Neimhidh, 2850–59
 * Murbholg, in Dál Riata
 * Baghna
 * Cnamh Ross


 * Reign of Eochaidh mac Erc, 3294-3304.
 * 3304 - First Battle of Magh Tuireadh, in Conmaicne Toland.


 * Reign of Nuadhat Airgeatlamh, 3311-30.
 * 3330 - Second Battle of Magh Tuireadh


 * Reign of Lugh Lamhfhada, 3330-3370.
 * 3370 - Caendruim.


 * Joint-Reign of Mac Cuill, Mac Cecht, and Mac Greine, 3471-3500.
 * 3500 - Sliabh Mis, Tuatha de Danann defeated by the sons of Milidh
 * 3500 - Tailtinn.


 * Joint-Reign of Eremhon and Emher, 3501.
 * 3501 - Geisill, fought at Tochar Eter Da Mhagh near Bri Damh


 * Reign of Eremhon 3502-16.
 * 3502 - Cuil Caichir
 * 3503 - Biletineadh
 * 3506 - Breogan, in Feimhin
 * 3510 - Comhraire, in Meath


 * Joint Reign of Muimhne, Luighne, Laighne, sons of Eremon, 3517-19.
 * 3519 - Ard Ladhron


 * Joint-Reign of Er, Orba, Fearon, Fergen, sons of Emher, first half of 3519.
 * 3519 - Cuil Marta


 * Reign of Irial Faidh, 3519-329.
 * Ard Inmaoith, in Teathbha
 * Tenmaighe
 * Lochmaighe
 * Reign of Conmael 3549-79.
 * 3549 - Raeire
 * Geisill
 * Berra
 * Sliabh Beatha, in Ui Creamhthainn
 * Ucha
 * Cnucha
 * Sliabh Modhairn
 * Clere
 * Carnmor
 * Loch Lein
 * Ele
 * 3579 - Aenach Macha


 * Reign of Tighearnmas, 3580-3656.
 * Elle
 * Lochmagh
 * Cul Ard, in Magh Inis
 * Cuil Fraechan
 * Magh Techt
 * Commar
 * Cul Athguirt, in Seimhne
 * Ard Niadh, in Connaught
 * Carn Fearadhaigh
 * Cnamh Choill, in Connaught
 * Cuil Feadha
 * Reabh
 * Congnaidhe, Tuath Eabha
 * Cluain Cuas, in Teathbha
 * Cluain Muirsge, in Breifne
 * Two Battles of Cuil, in Argat Ross
 * Ele
 * Berra
 * Seven Battles of Loch Lughdhach
 * Two Further Battles of Argat Ross
 * Three Battles of the Firbolgs
 * Cuil Fothair


 * Reign of Eochaidh Eadghadhach, 3664-67.
 * 3667 - Teamhair


 * Joint-Reign of Sobhairce and Cearmna Finn, sons of Ebric mac Emher: 3668-3707.
 * Reign of Eochaidh Faebhar Ghlas mac Conmael: 3708-3727.
 * Luachair Deadhadh
 * Fosadh Da Ghort
 * Comar Tri nUisge
 * Tuaim Drecon, in Ui Briuin Breifne
 * Druim Liathain
 * 3727 - Carman


 * Reign of Fiacha Labhrainne: 3728-51.
 * Gathlach
 * Fairrge
 * Sliabh Feimhin
 * Magh Ernai
 * 3751- Bealgadan


 * Reign of Eochaidh Mumho mac Mofebis: 3752-72.
 * 3772 - Cliach


 * Reign of Aengus Olmucadha mac Fiacha Labhrainne: 3773-90.
 * Clere
 * Cuirce
 * Sliabh Cailge, in Corca Bhaiscinn
 * Ros Fraechan, in Muirisc
 * Carn Riceadha
 * Cuil Ratha, in South Munster
 * Sliabh Cua
 * Ard Achadh
 * Fifty Battles of the Cruithean Tuath and Firbolgs
 * Twelve Battles of the Longbardai
 * Four battles of the Colaisti
 * 3790 - Carmann


 * Reign of Enna Airgtheach: 3791-3817.
 * 3817 - Raighne
 * 4815 - Tara.
 * 4907 - Ard Crimhthainn.
 * 5089 - Aillinn.
 * 5090 - Cliach, in Ui Drona.
 * 5160 - Bruighean Da Dhearg

Anno Domini

 * 76  - Aichill
 * 106 - Moin An Chatha, in Magh Line, Dal Araidhe.
 * 122 - Magh hAgha
 * 157 - Tuath Amrois.
 * 186 - Ceannfeabhrat.
 * 195 - battle of Maigh Mucruimhe.
 * 226 - Crinna, in Brega.
 * 236 - Eu, Magh nAi.
 * 236 - Eth.
 * 236 - Ceann Daire.
 * 236 - Sruth.
 * 236 - Slighe Cuailgne.
 * 237 - Ath Beatha
 * 237 - Dumha
 * 238 - Three Battles of Cuiltochair.
 * 238 - Three Battles of Dubhadh.
 * 239 - Allamagh
 * 239 - Seven Battles of Elve
 * 240 - Magh Techt
 * 241 - Berre
 * 241 - Loch Lein
 * 241 - Luimneach
 * 241 - Grian
 * 241 - Classach
 * 241 - Muiresc
 * 241 - Fearta
 * 241 - Samhain
 * 241 - Ard Cam
 * 241 - Massacre of Cleanfearta
 * 248 - Fochard Muirtheimhne
 * 262 - Crionna Fregabhail
 * 265 - Seven Battles of the Desi
 * 271 - Year of The Three Battles
 * 272 - Year of The Four Battles
 * 283 - Ath Brea, on the Boyne
 * 284 - Gabhra Aichle
 * 285 - Ollarba, in Magh Line
 * 291 - Duibhlinn
 * 291 - The Three Battles of Sliabh Toadh
 * 291 - Smear
 * 291 - Ciarmhagh
 * 322 - Dubhchomar, in Crioch Rois, in Breagh
 * 331 - Achadh Leithdheirg, in Fearnmhagh
 * 356 - Portrigh