Maithan Maonmaighe O'Brien
d. 1369
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Family
About
Maithan Maonmaighe O'Brien took his epithet from Maonmaighe near Loughrea, where he was fostered - the old Gaelic custom of fosterage written into a man's very name. He held the lordship of Thomond and died in 1369; his marriage to Winifred O'Connor carried the line onward.
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.): MAITHAN MAONMAIGHE O'BRIEN, d. 1369 (fostered at Maonmaighe near Loughrea, whence the epithet). m. Winifred, dau. of O'Connor Corc. Father of Brian of the Battle of Nenagh (our line). Direct ancestor.