Eógan mac Néill

[a] The Cenél Eoghan would found the over-kingdom of Ailech and later Tír Eoghain, which would span the greater part of Ulster.

His burial place is said to be in the Inishowen Peninsula in County Donegal, Ireland which was named after him.

[2] With his brother, the High King Lóegaire mac Néill (d. 462), he was one of the judges in a dispute over the succession to Amalgaid (d. 440), king of Connacht, among his sons competing to rule their territory of Tir Amalgaidh in north-west Connacht.

[3] Eoghan is reputedly buried at St. Patrick's Church in Iskaheen, Inishowen, Donegal.

A plaque there states, "Eoghan Prince of Inis Eóghain, Son of Niall of the Nine Hostages.