Family: King of Munster Muirchertach O Brien / Dubhchobhleigh Na Ossory (F5169)
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Toirrdelbach O Brien (1009-1086) |
Derbforgaill Na Ossory (1000-1098) |
| King of Munster Muirchertach O Brien (1030-1119)
|
| Dubhchobhleigh Na Ossory (1050-1098) |
Princess Lafracoth O'Brien (1076-1135)  |