Thomas was the son of sir Robert d'Harcourt and Margaret Byron. The date and place of his birth have not been found.
sir Robert d'Harcourt |
sir Thomas II d'Harcourt |
sir Thomas d'Harcourt |
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Maud de Grey |
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Jane Fraunceys |
sir Robert Fraunceys |
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Isabel de Peshall |
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Margaret Byron |
John de Byron |
sir Richard de Byron |
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Joan de Colewick |
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Margery Booth |
John de Booth |
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Joanna de Trafford |
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