Tracing Douglas family roots - unraveling history, one generation at a time.
Abt 926 - 1014 (88 years)
| Donnchad (King of Munster) O'brien | |
| D: | 1064 |
| Rome | |
 | Driella -Yes, date unknown |
| Driella | |
| D: | Yes, date unknown |
| Moy O'brien -Yes, date unknown |
| Moy O'brien | |
| D: | Yes, date unknown |
| Murchad Macdomnaill (King of Mide) O'néill | |
| D: | 1153 |
| Brian Macmurchada (King of Munster) O'brien | |
| D: | 1118 |
| Murchad Macdonnchad (King of Munster) O'brien | |
| D: | 1068 |
| Lorcán Macdonnchada O'brien -Yes, date unknown |
| Lorcán Macdonnchada O'brien | |
| D: | Yes, date unknown |
| Murchad Macdiarmata Meicmáel Na King of Leinster | |
| B: | 1052 |
| D: | 21 Nov 1070 |
| Or 1090 | |
| Sadb Ingen Macbricc -Yes, date unknown |
| Sadb Ingen Macbricc | |
| D: | Yes, date unknown |
| Énna Macdiarmata King of Leinster | |
| D: | 1092 |
| Dearbforgail Ingen Donnchada O'brien | |
| D: | 1080 |
| Diarmait Macmáil Na King of Ireland & Leinster | |
| D: | 7 Feb 1071-1072 |
| Unknown |
| Dermot (Dairmait) King of Munster | |
| D: | 1118 |
| Tadg Mactoirrdelbaig King of Munster -Yes, date unknown |
| Tadg Mactoirrdelbaig King of Munster | |
| D: | Yes, date unknown |
| Donnachad Mactoirrdelbaig O'brien -Yes, date unknown |
| Donnachad Mactoirrdelbaig O'brien | |
| D: | Yes, date unknown |
| Muirchertach II King of Munster & Ireland | |
| D: | Abt 1086 |
| Or 13.03.1119 | |
| Turough (Toirrdelbach) King of Munster | |
| D: | 14 Jul 1086 |
| (Terence) Teige O'brien -1023 |
| (Terence) Teige O'brien | |
| D: | 1023 |
| Murchad O'brien -Yes, date unknown |
| Murchad O'brien | |
| D: | Yes, date unknown |
| Domnaill Ban O'brien -Yes, date unknown |
| Domnaill Ban O'brien | |
| D: | Yes, date unknown |
| Slani Ingen Brian O'brien -Yes, date unknown |
| Slani Ingen Brian O'brien | |
| D: | Yes, date unknown |
| Sihtric Silkbeard Olafsson King of Dublin | |
| D: | 1042 |
| Clontarf, Dublin | |
|
| Brian Boru Maccennét King of Munster & Ireland Abt 926-1014 |
| Brian Boru Maccennét King of Munster & Ireland | |
| B: | Abt 926 |
| D: | 23 Apr 1014 |
| Battle Of Clontarf | |
| Gormflaeth Ingen Murchada Macfinn | |
| D: | 1030 |
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