Mary was the daughter of Donough O'Brien and Helen Butler. The date and place of her birth have not been found.
Her husband was Theobald Bourke. They were married, but the date and place have not been found. They had no known children.
Donough O'Brien |
Conchobar O'Brien |
Turlogh Donn O'Brien |
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Raghnailt MacNamara |
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Annabel de Burgh |
Ulick de Burgh |
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Sluma MacNamara |
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Helen Butler |
Piers Butler |
sir James Butler |
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Sabh Kavanagh |
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Margaret Fitzgerald |
Gearóid Mór FitzGerald |
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Alison FitzEustace |
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