State

Tír Eoghain

Also known as Tir Eoghain

Tír Eoghain, 'Eogan's land', was the Gaelic kingdom of the O'Neills in mid-Ulster, the core of modern County Tyrone. Its kings descended from the Cenél nEógain branch of the northern Uí Néill and became the most powerful Gaelic rulers in late medieval Ireland. Its last ruler, Hugh O'Neill, led the Nine Years' War against the English crown.

Tír Eoghain
Image: Mabuska · CC BY-SA 3.0 · Wikimedia Commons

Mentioned in 2 state histories

Kingdom of Tir EoghainLordship of Clandeboye

See also

Cite this entry
APA
The Epoch Institute. (2026). Tír Eoghain. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/tir-eoghain
MLA
“Tír Eoghain.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/tir-eoghain. Accessed .
Chicago
The Epoch Institute. “Tír Eoghain.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/tir-eoghain.
Harvard
The Epoch Institute (2026) ‘Tír Eoghain’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/tir-eoghain (Accessed: ).

Last reviewed October 2026Random entry ↻