Biography

A son of Cú Ceanain mac Tadhg

Cú Ceanain mac Tadhg

Cú Ceanain mac Tadhg, Prince of Uí Díarmata, ancestor of the Concannon family, died 991-Background:Cú Ceanain mac Tadhg was a member of the Síl Muiredaig dynasty, who ruled as kings of The Connachta in what is now central County Roscommon. By the mid 10th-century they had expanded south-west into...

, first name unknown, is noted as king of Uí Díarmata at his death in 1021. His father, though never king himself, had died fighting against the then king in a succession war in 991. From the reign of his son, became the ancestor of all subsequent kings, and the dynasty took their surname, O Concannon, from him.

The Annals of the Four Masters

Annals of the Four Masters

The Annals of the Kingdom of Ireland or the Annals of the Four Masters are a chronicle of medieval Irish history...

 report his death: * The son of Cuceanann, lord of Ui-Diarmada, was slain by the Ui-Gadhra (see Kings of Sliabh Lugha

Kings of Sliabh Lugha

The Kings of Sliabh Lugha were rulers of the district of Sliabh Lugha, located in what is now County Mayo.The Sliabh Lugha area was originally known as Gailenga but by the 12th-century called Sliabh Lugha. Its rulers were the Ó Gadhra, whose ancestors were Kings of Luighne Connacht, an over-kingdom...

).