| Name | Relationship with Natalie Seiwell | Civil | Canon |
| Bayley, Mary | 13th great-grandmother | XV | 15 |
| Bearsson, Alice | 25th great-grandaunt | XXIX | 28 |
| 26th great-grandaunt | XXX | 29 |
| 27th great-grandaunt | XXXI | 30 |
| 29th great-grandaunt | XXXIII | 32 |
| Bearsson, Bjorn | 28th great-grandfather | XXX | 30 |
| 29th great-grandfather | XXXI | 31 |
| 30th great-grandfather | XXXII | 32 |
| 32nd great-grandfather | XXXIV | 34 |
| Bearsson, Hextilda | 24th great-grandmother | XXVI | 26 |
| 25th great-grandmother | XXVII | 27 |
| 26th great-grandmother | XXVIII | 28 |
| 28th great-grandmother | XXX | 30 |
| Bearsson, Matilda | 25th great-grandaunt | XXIX | 28 |
| 26th great-grandaunt | XXX | 29 |
| 27th great-grandaunt | XXXI | 30 |
| 29th great-grandaunt | XXXIII | 32 |
| Bearsson, Sibyl | 26th great-grandaunt | XXX | 29 |
| 27th great-grandaunt | XXXI | 30 |
| 28th great-grandaunt | XXXII | 31 |
| 30th great-grandaunt | XXXIV | 33 |
| Bearsson, Siward Digera | 27th great-grandfather | XXIX | 29 |
| 28th great-grandfather | XXX | 30 |
| 29th great-grandfather | XXXI | 31 |
| 31st great-grandfather | XXXIII | 33 |
| Bearsson, Uchtred | 25th great-grandfather | XXVII | 27 |
| 26th great-grandfather | XXVIII | 28 |
| 27th great-grandfather | XXIX | 29 |
| 29th great-grandfather | XXXI | 31 |
| Bearsson, Waltheof | 26th great-grandfather | XXVIII | 28 |
| 27th great-grandfather | XXIX | 29 |
| 28th great-grandfather | XXX | 30 |
| 30th great-grandfather | XXXII | 32 |
| Beatrix Of Scotland | 26th great-grandmother | XXVIII | 28 |
| Beauchamp, Cambus Bellus | 31st great-grandmother | XXXIII | 33 |
| Beauchamp, John | 23rd great-grandfather | XXV | 25 |
| Beauchamp, Mary | 22nd great-grandmother | XXIV | 24 |
| Beaufort, Edmund Holland | 17th great-granduncle | XXI | 20 |
| 20th great-granduncle | XXIV | 23 |
| Half 4th cousin 19 times removed | XXIX | 24 |
| Half 5th cousin 19 times removed | XXXI | 25 |
| 5th cousin 19 times removed | XXXI | 25 |
| Half 4th cousin 22 times removed | XXXII | 27 |
| 6th cousin 20 times removed | XXXIV | 27 |
| Half 5th cousin 22 times removed | XXXIV | 28 |
| 7th cousin 18 times removed | XXXIV | 26 |
| 5th cousin 22 times removed | XXXIV | 28 |
| 6th cousin 23 times removed | XXXVII | 30 |
| 7th cousin 21 times removed | XXXVII | 29 |
| 10th cousin 19 times removed | XLI | 30 |