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Byrne Surname

Roots: Byrnes and O’Beirnes

By James G. Ryan

September / October 1997

March 7, 2025 by Leave a Comment

The names O'Byrne and O'Beirne (or Byrne and Beirne) are often regarded as variants of the same name, much to the annoyance of the less-common Beirnes. In fact, the names spring from totally different sources. O'Byrne is derived from the Gaelic O'Broin, meaning "descended from Bran," an 11th century King of Leinster. The O'Byrnes were chieftains of what is now County Kildare … [Read more...] about Roots: Byrnes and O’Beirnes

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June 30, 1932

On this day, Eamon de Valera abolished the Oath of Allegiance, a provisional aspect in the Anglo-Irish treaty of 1921. This provisional aspect originally required all members of the Irish parliament to take an oath declaring their allegiance to the King. This date also marked when de Valera withheld land annuities from England.

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