 MaleSir John FitzMarmaduke |
| Birth | Abt 1240 | Durham, England  |
| Death | Bef 16 Aug 1311 | Durham, England |
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 FemaleIsabel de Brus |
| Birth | Abt 1245 | Annandale, Dumfriesshire, Scotland |
| Death | Bef 08 May 1285 | Peterlee, Durham, England |
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| Female + Mary FitzMarmaduke |
| Birth | 1273 | Durham, England |
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| Spouse | Sir Robert Lumley | F4649 | |
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