List of pedigrees
Bland of Northern Neck Va.
Nicholas
Hester of Fleming Co Ky
Thruston
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O'Brien 2: O'Brien Kings of Thomond
Conchobar Conor Na Suidaine macDonnchada O'Brien, King of Thomond d 22.05.1258
The spelling of the following names is as given in 'RoyalData' but simplifieds by omitting the Gaelic reference to the father. For example, "O'Brien, Tedg Caeluisce macConchobair, King of Thomond" is shown as ....
1. Tedg Teige Caeluisce O'Brien, King of Thomond d 1259
A. Toirrdelbach Turlough O'Brien, King of Thomond d 1306
i. Donnchad O'Brien, King of Thomond d 1311
ii. Muirdertach Mortogh O'Brien, King of Thomond d 05.06.1343
m Edaouin McGorman
a. Mathghamhain Mahon Moinmoy O'Brien of Maonmhagh, King of Thomond d 1369
Br18 Brian Sreamhach O'Brien, King of Thomond d 1400
Br17-1 Tadhg an Glenmore O'Brien d 1444
Br17-1 Mathghamhain Dall O'Brien, King of Thomond d 1462
i Donnchad O'Brien, King of Thomond d 1461
a Brian an Cherlaig O'Brien, Prince of Dunstir
1 Cathir Dubh O'Brien
A Murrough O'Brien of Togarrow had issue
2 Own O'Brien of Togarrow and Monfin
ii Murchadh O'Brien
Br17 Toirdhealbhagh Turlough Bog 'the Soft' O'Brien, King of Thomond d 1459
Br16 Tadhg Teige an Chombaid O'Brien, King of Thomond d 1466
Br15-1 Toirdhealbhagh Turlough Donn O'Brien, King of Thomond d 1528
m1 Raghnail Macnamara dau of John Macnamara of Clancuilen
1 Tadhg Teige O'Brien d 1523
A Brian O'Brien
B Mahone O'Brien d 1552
2 Conchobar Conor O'Brien, King of Thomond d 1540
Conor was succeeded as Chief of the O'Briens by his brother Morrough rather than his son. Morrough surrendered his royalty to King Henry VIII of England and was appointed Earl of Thomond for life but with the earldom then following the senior line.
m1 Annabella de Burgh dau of Ulrick de Burgh of Clanricarde
A Donough O'Brien, 2nd Earl of Thomond d 1553
m 1533 Ellen Butler dau of Piers Butler, 8th Earl of Ormonde
m2 Ellice FitzThomas dau of Maurice FitzThomas 'the lame', 9th Earl of Desmond
B Donald O'Brien ancestor of O'Briens of Ennistymond
C Torlogh O'Brien dsp 1557
D Teige O'Brien ancestor of O'Briens of Ballycorick
E Morrough O'Brien ancestor of O'Briens of Cahterminane
F Morrough O'Brien of Drumline d 1593
3 Slaine O'Brien
m Brian MacMahon of Carrigahlot Castle
4+ other issue - Donnchadh d 1531, Dermot
m2 Joan FitzMaurice dau of Thomas FitzGerald, Lord of Kerry
6 Morrough O'Brien, 1st Earl of Thomond, 1st Lord of Inchiquin d 07.11.1551
m Eleanor FitzGerald dau of Sir Thomas FitzGerald of Glyn
b Domhall Tanaiste O'Brien d 1508
m Saibh O'Lochlin
1 Conor O'Brien 4th son
m Celia D'Dea
A Dermod O'Brien of Caruduff had issue
m Eleanor MacMahon
B Donough O'Brien of Caruduff
2+ other issue - Brian, Teige, Mortogh
c Margaret O'Brien
m James FitzThomas, 8th Earl of Desmond b c1448, d 07.12.1487
d+ other issue - Donnchadh, Brian d 1523
Br16-2 Conchobar Mor O'Brien, King of Thomond d 1496
Br16-3 Donnchadh O'Brien, Bishop of Killaloe d 1460
Br16 Mathghamhain Tanaiste O'Brien d 1472
Br15 Toirdhealbhach O'Brien, Bishop of Kildare d 1525
Br14 Amy O'Brien d before 1537
m1 James FitzThomas, 10th Earl of Desmond dspm 18.06.1529
m2 sp Edmund FitzMaurice, 10th Lord of Kerry d 1543
Br16-5 Murchadh Tanaiste O'Brien
Br16-6 Toirdhealbhach og O'Brien, King of Thomond d 1498
Br18-2 Conchobar O'Brien, King of Thomond d 13.04.1426
A Brian Dubh O'Brien
i Domchadh O'Brien of Carrigogunnll d 1502
m Margaret O'Kennedy
a Mahon O'Brien
m Elizabeth O'Brian of Ara
1 Donough O'Brien
A Donald O'Brien had issue
2 Mortogh O'Brien
A Murrough O'Brien d 1577 had issue
3 Brian Duff O'Brien
4 Maud O'Brien
m John FitzThomas, Earl of Desmond
B Domnhald O'Brien, Bishop of Limerick d 1411
C Dermond O'Brien
b. Toirrdelbach Maol O'Brien, King of Thomond d 1398
c. Tadhg O'Brien d 1380
1 Toirdhealbhach O'Brien d after 1421 had issue
iii. Dairmaid O'Brien, King of Thomond d 1364
iv. Conchobar Conor O'Brien d Thurles 19.07.1329
a. Margaret O'Brien
m Maurice FitzThomas, 1st Earl of Desmond b 1393, d 25.01.1355-6
v. Slany O'Brien probably of this generation
m Sir Edmond de Burgh d 1338
B. Domnall O'Brien d 1280
2. Iohan Seoinin O'Brien d 1268
3. Brian Ruad O'Brien, King of Thomond d 1275
A. Donnchad O'Brien, King of Thomond d 1284
i. Diarmait Cleireich O'Brien, King of Thomond d 01.06.1313
B. Domnall O'Brien
m Margaret MacMahon
i. Donnchad O'Brien, King of Thomond d 17.08.1317
ii. Brian Ban O'Brien, King of Thomond d 1350
m 1318 dau of Henry Burke
a. Murchada na Raithne O'Brien, Lord of Arra d 1383
m More O'Kennedy of Ormonde
1 Toirdhealbhach O'Brien d 1400
m Honor Oge of Buttercut
A Teige O'Brien d 1474
i Donald Mor O'Brien d 1508
a Murrough O'Brien d 1504
b Mortogh Casch O'Brien
1 Turlough MacBrien Ara O'Brien d 1601 had issue
m Mor O'Carrol d 1592, dau of Donough O'Carrol, Lord of Ely
2 Mortogh O'Brien of Dunharrow
A Maurice O'Brien had issue
m Margaret Barry dau of David FitzGerald Barry
B Murrough O'Brien d 1427
iii. Donal O'Brien
C. Toirrdelbach O'Brien d 1305

Sources: 'RoyalData'
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