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O'brion Surname History



The old Gaelic name used by the O'brion family in Ireland was O Briain, which means descendant of Brian.


Early Origins of the O'brion family


The surname O'brion was first found in Thomond, a territory comprised of most of County Clare with adjacent parts of counties Limerick and Tipperary. Prior to the 10th century, the sept was a Dalcassian Clan known as the Ui Toirdealbhaigh and achieved prominence with the rise of their eponymous ancestor, Brian Boru (941-1014), to the High Kingship of Ireland. Brian Boru, by far the most outstanding figure of this family, is widely acknowledged as the greatest of all the ancient Kings of Ireland and is best remembered for driving the Norsemen out of Ireland at the Battle of Clontarf in 1014.

Early History of the O'brion family


This web page shows only a small excerpt of our O'brion research.
Another 187 words (13 lines of text) covering the years 1551, 1369, 1400, 1577, 1663, 1690, 1614, 1674, 1642, 1678, 1640, 1692, 1699, 1771, 1600, 1651, 1642, 1717, 1692 and 1714 are included under the topic Early O'brion History in all our PDF Extended History products and printed products wherever possible.

O'brion Spelling Variations


Irish names recorded during the Middle Ages are characterized by many spelling variations. This preponderance of variations for common names can be explained by the fact that the scribes and church officials that kept records during that period individually decided how to capture one's name. These recorders primarily based their decisions on how the name was pronounced or what it meant. Research into the name O'brion revealed many variations, including O'Brien, OBrine, O'Brion, O'Bryan, O'Bryen, McBrien, McBrine, Brian, Briand, Briant, Brine, Brines, Briens and many more.

Early Notables of the O'brion family (pre 1700)


Notable amongst the family name at this time was Brian Sreamhach MacMathghamhna O'Brien, king of the Irish region of Thomond (1369-1400); Daniel O'Brien (1577-1663), member of the Supreme Council of Catholic Confederates; Daniel O'Brien (d. 1690), founder of the Irish Brigade known as Clare's Dragoons; Murrough McDermod O'Brien, 1st Earl of Inchiquin and 6th Baron Inchiquin (1614-1674); Henry O'Brien, Lord Ibrackan or Lord...
Another 63 words (4 lines of text) are included under the topic Early O'brion Notables in all our PDF Extended History products and printed products wherever possible.

Migration of the O'brion family to the New World and Oceana


Some of the first settlers of this family name were:

O'brion Settlers in Canada in the 18th Century

  • Henry OBrion, who landed in Nova Scotia in 1750
  • James Obrion, who arrived in Nova Scotia in 1750
  • Thomas Obrion, who arrived in Nova Scotia in 1750

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