Crimthann mac Énnai

Crimthann mac Énnai (died 483) was a King of Leinster from the Uí Cheinnselaig sept of the Laigin.

[1] It is not known when he acquired the throne but, in the annals record of the Battle of Áth Dara, on the River Barrow in Mag Ailbe (South County Kildare), in 458, both the Annals of Ulster and the Chronicum Scotorum name Crimthann as the leader of the Laigin forces.

[4] The annals record that he was slain (mortally wounded) in 483 and the Chronicum Scotorum specifies that Eochaid Guinech of the Uí Bairrche and the men of Arad Cliach were responsible.

They had a daughter named Eithne Uatahach (d.490), who was fostered by the Deisi and was married to Óengus mac Nad Froích (d.490), the first Christian king of Munster.

In the Kinsella (Chennselaigh) and other genealogies, Crimthann mac Ennai's first wife, and the mother of Nath Í, was Mel - also referred to in The Expulsion of the Déisi (Dessi, Deissi).