Ulaid Kinslaying
Archived: 3 November 2026
Abstract
In 647 CE, Máel Cobo son of Fiachnae, overking of Ulaid, was killed by his nephew Congal Cennfhota son of Dúnchad. The notice is brief, but it preserves a decisive act of dynastic violence in north-east Ireland. Máel Cobo belonged to Dál Fiatach, one of the competing royal kindreds of Ulaid; Congal belonged to the same dynasty and was the son of Máel Cobo’s brother Dúnchad. This was not an invasion or a clash between distant peoples. It was a killing within the ruling family, at a point when possession of the overkingship of Ulaid could turn on the survival,
