Mary was the daughter of Gearóid Óg FitzGerald and Elizabeth la Zouche. The date and place of her birth have not been found.
Her husband was Briann O'Connor. They were married, but the date and place have not been found. They had no known children.
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Gearóid Óg FitzGerald |
Gearóid Mór FitzGerald |
Thomas FitzMaurice FitzGerald |
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Joan FitzGerald |
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Alison FitzEustace |
Rowland FitzEustace |
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Jenet Bellew |
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Elizabeth la Zouche |
John la Zouche |
John la Zouche |
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Elizabeth de Grey |
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Elizabeth St. John |
sir John St. John |
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Alice Bradshaw |
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