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Hennessy Family History

“Vi vivo et armis”

I live by force and arms

The surname "Hennessy" is an Anglicised form of the Gaelic "Ó hAonghusa" meaning "son of Angus".

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The Hennessy Family Message Board

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Areas of origin

  • Dublin, Leinster, Ireland

    Learn more about Dublin on Ireland101

  • Westmeath, Leinster, Ireland

    Learn more about Westmeath on Ireland101