Ralph was the son of sir William de Vernon and Margaret Swynfen. The date and place of his birth have not been found.
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sir William de Vernon |
Richard III de Vernon |
sir Richard II de Vernon |
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Joan verch Rhys Griffith |
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Benedicta de Ludlowe |
sir John de Ludlowe |
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Isabel Lingen |
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Margaret Swynfen |
William Swynfen |
Robert de Swynfen |
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Joan de Pype |
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Joyce Spernor |
William Spernor |
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Alice de Sulney |