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OBrien Family History
OBrien Genealogy & Family TreeO’Brien is an Irish name from Thomond, Ireland, where the oldest known O’Brien ancestor—Brian Boru, King of Ireland—was recorded in the 10th Century. The name means “descendant of Brian,” named after the same king, who drove the Norseman out of Ireland in the Battle of Clontarf. Roots for this name can also be found in Germany and Spain. The family motto is Lamh laidir an Uachtar which means “The strong hand from above.”
Other spellings include “O’Brian,” “O’Brine,” “O’Brion,” “O’Bryan,” “O’Bryen,” “Briand,” “Briant,” “Brine,” “Brines,” “Briens,” “McBrien,” and “McBrine.” Notable people with the same surname include American actress Angela Maxine O’Brien (better known as Margaret O’Brien), Irish novelist Edna O’Brien, and American television host Conan O’Brien (Late Night with Conan O’Brien). One of the first O’Briens to come to America was Andrew O’Brien in Pennsylvania in the 1840s.
OBrien Birth Records
- Name Birth Date Death Date Location
- Morough OBrien -- --, 4 December 0, 1014
- Dermot OBrien -- --, 1075 December 0, 1120 Nordrhein-Westfalen
- Teige An OBrien -- --, 1423 December 0, 1466
- Mathghamhain Tanaiste OBrien -- --, 1420 December 0, 1472
- Maithan OBrien -- --, 1335 May 1, 1360
OBrien Death Records
- Name Birth Date Death Date Location
- Mathghamhain Tanaiste OBrien -- --, 1420 December 0, 1472
- John Obrien -- --, 1844 June 6, 1913
- Morough OBrien -- --, 4 December 0, 1014
- Michael Obrien -- --, 1784 December 13, 1849
- Conchobar OBrien -- --, 1485 December 0, 1539
