Blathmac mac Áedo Sláine

That same year Diarmait defeated Clann Cholmáin Bicc in battle at Cúil Caeláin where Óengus mac Colmáin's son Máel Umai was killed.

At this time the High Kingship of Ireland may have been disputed between Domnall mac Áedo of the northern Cenél Conaill branch of the Uí Néill and the cruithne king Congal Cáech.

Some branches of the Uí Néill fought against Domnall, among them Conall mac Suibni's son Airmedach who died there.

The Baile Chuind omits several kings, including Áed Sláine, some of which may be copying errors, but others are apparently deliberate.

It is a work of dynastic propaganda, its purpose to demonstrate that the Síl nÁedo Sláine should by right be High Kings of Ireland.

The death of Eochaid in 660 is reported without explanation, but the notice of the killing of Dúnchad and Conall in 651 is accompanied by some gnomic verses.

Blathmac's five recorded sons have already been mentioned: Sechnassach and Cenn Fáelad who survived him and Dúnchad, Conall and Eochaid, who pre-deceased him.

For editors and creators of Middle Irish-language literature, the reign of Blathmac and Diarmait was imagined as a Golden Age.