Margaret was the daughter of Thomas Cusack and Maud Darcy. The date and place of her birth have not been found.
Her husband was Murrough O'Brien. They were married, but the date and place have not been found. Their only known child was Dermot (1594-1624).
Thomas Cusack |
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sir William Wellesley |
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William Darcy |
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Margaret St. Lawrence |
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