Mary FitzMaurice, 4th Countess of Orkney
Mary FitzMaurice, 4th Countess of Orkney was a Scottish peer, the only surviving child of Murrough O'Brien, 1st Marquess of Thomond and Mary O'Brien, 3rd Countess of Orkney.
From *.wikipedia.org,
General Info
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Female
Date of Birth
September 4th, 1755
Age
270
Date of Death
December 30th, 1831
Died Aged
76
Star Sign
Virgo
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Relatives
Murrough O'Brien, 1st Marquess of Thomond
Father
John FitzMaurice, Viscount Kirkwall
Son
Thomas FitzMaurice
Husband
Mary O'Brien, 3rd Countess of Orkney
Mother
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