BC
Brian Catha-an-Aonaigh O'Brien
d. 1399
Vitals
Died
1399
Family
Spouse
Children
About
Brian Catha an Aonaigh O'Brien takes his byname from the battle of Aonach, and he held Thomond in the fifteenth century.
Research notes
✓ (O'Hart, Irish Pedigrees (1892), 'O'Brien (No.1) King of Thomond', gen. nos. as cited; corroborated by the Annals of the Four Masters and by the DC782/R-L226 O'Brien Y-DNA study (which independently numbers this same descent 105 Brian Boru -> 120 Turlogh Donn). Wired 23 Jul 2026.): BRIAN CATHA-AN-AONAIGH O'BRIEN ('BRIAN OF THE BATTLE OF NENAGH'), d. 1399. m. 1st Slaine, dau. of Lochlan Laidir MacNamara - mother of his son Turlogh (No.118, our line). Direct ancestor.