Toirdhealbhach Mór Ó Briain

Toirdhealbhach Mór Ó Briain[1] (born c. 1250, died 1306) was King of Thomond (1276-1306) and the main protagonist of Seán mac Ruaidhri Mac Craith's epic Cathreim Thoirdhealbhaigh describing his struggles against the Norman Thomas de Clare.

Brian then became an ally of Thomas de Clare who would restore him to power and in return be allowed to colonize all the land between Quin and Limerick, he succeeded and drove out Toirdhealbhach.

Toirdhealbhach then enlisted the aid of his cousin William de Burgh and the MacNamara and O'Dea clans.

He defeated the combined forces of Brian Ruadh and Thomas de Clare in 1277 and became King of Thomond.

He married firstly Sadhbh daughter of Tadhg Mac Carthy (son of Donogh Carrthain MacCarthy Mór, King of Desmond) and had possibly by her.