| | Thomas Holcombe 1601–1657 Elizabeth Ferguson …–1679 | | |
| | Gilbert Holcombe 1565–1600 | | |
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| | Gilbert Holcombe 1565–1600 | | |
| | Katherine Reskimer 1546–… Peter Courtenay 1536–1606 | | |
| | William Reskimer 1515–1564 | | |
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| | Gilbert Holcombe 1565–1600 | | |
| | Peter Courtenay 1536–1606 Katherine Reskimer 1546–… | | |
| | Margaret Trethurfe 1505–1576 | | |
| | Maude Mary Trevisa 1480–… | | |
| | | | | | | | | | Matilda (Maud) Beaumont …–1467 | | | | Edward de Courtenay of Godlington 1329–1372 | | | | Hugh de Courtenay 2nd Earl of Devon 1303–1377 Margaret de Bohun 1311–1391 | | |
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| | | John Beaumont Lord Beaumont …–1342 Eleanor Plantagenet of Lancaster …–1372 | | | | Henry Beaumont Earl of Buchan 1288–1340 | | |
| | | Henry Plantagenet 3rd Earl of Leicester and Lancaster 1281–1345 Maud de Chaworth 1282–1322 | | |
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