Cennétig mac Lorcáin

He was the father of Brian Boru, who would continue Cennétig's war-like rise to power, by becoming High King of Ireland in 1002.

After the death of Rebeachan Mac Mothla, who died as King of the Dál gCais and Abbot of Tuam Greine in 934, Cennetig's father Lorcáin is said to succeed him, being the first of the Uí Thairdhealbhach rulers.

Cennétig married Beibhinn, daughter of Urchadh mac Murchadh, king of Iar Connacht (a political marriage typical of the time).

An Leabhar Muimhneach ("The Book of Munster") reports that he won a battle against Cellachán at Inis Locha Saingleann (Singland, Limerick).

Congalach returned again in 951, this time with the combined fleet of "Leth Cuinn" (the northern half of Ireland) and plundered along the Shannon (some of which would have been Cennétig's territory).

Of these only five produced heirs for themselves (Brian, Mathgamain, Donncuan, Echthighern and Anlón), seven did not (Lachtna, Finn, Dub, Marcán, Flann, Conchobar and another son whose name is not recorded).

The fact that Órlaith was killed rather than simply repudiated by her husband, suggests that her family was regarded as significantly lower ranking than that of the High King.