| Name | Relationship with Natalie Seiwell | Civil | Canon |
| Half 3rd cousin 20 times removed | XXVIII | 24 |
| Half 4th cousin 20 times removed | XXX | 25 |
| 4th cousin 20 times removed | XXX | 25 |
| Half 3rd cousin 23 times removed | XXXI | 27 |
| Half 4th cousin 23 times removed | XXXIII | 28 |
| 6th cousin 19 times removed | XXXIII | 26 |
| 4th cousin 23 times removed | XXXIII | 28 |
| 5th cousin 21 times removed | XXXIII | 27 |
| 6th cousin 22 times removed | XXXVI | 29 |
| 5th cousin 24 times removed | XXXVI | 30 |
| Beaufort, John Rouet | 18th great-grandfather | XX | 20 |
| 21st great-grandfather | XXIII | 23 |
| Half 3rd cousin 20 times removed | XXVIII | 24 |
| Half 4th cousin 20 times removed | XXX | 25 |
| 4th cousin 20 times removed | XXX | 25 |
| Half 3rd cousin 23 times removed | XXXI | 27 |
| Half 4th cousin 23 times removed | XXXIII | 28 |
| 6th cousin 19 times removed | XXXIII | 26 |
| 4th cousin 23 times removed | XXXIII | 28 |
| 5th cousin 21 times removed | XXXIII | 27 |
| 6th cousin 22 times removed | XXXVI | 29 |
| 5th cousin 24 times removed | XXXVI | 30 |
| Husband of the half 3rd cousin 20 times removed | | |
| Husband of the half 4th cousin 20 times removed | | |
| Husband of the 4th cousin 20 times removed | | |
| Husband of the half 3rd cousin 23 times removed | | |
| Husband of the 5th cousin 21 times removed | | |
| Husband of the half 4th cousin 23 times removed | | |
| Husband of the 6th cousin 19 times removed | | |
| Husband of the 4th cousin 23 times removed | | |
| Husband of the 5th cousin 24 times removed | | |
| Husband of the 6th cousin 22 times removed | | |
| Husband of the 9th cousin 20 times removed | | |
| Husband of the 9th cousin 21 times removed | | |
| Husband of the 11th cousin 18 times removed | | |
| Husband of the 9th cousin 22 times removed | | |
| Husband of the 10th cousin 21 times removed | | |
| Husband of the 10th cousin 23 times removed | | |
| Husband of the 11th cousin 21 times removed | | |
| Husband of the 9th cousin 25 times removed | | |
| Beaufort, Margaret | 19th great-grandmother | XXI | 21 |
| Beaumont, Aubreye | 32nd great-grandaunt | XXXVI | 35 |
| Beaumont, Elizabeth | 30th great-grandaunt | XXXIV | 33 |
| Beaumont, Hawise | 30th great-grandmother | XXXII | 32 |
| Beaumont, Henry | 32nd great-granduncle | XXXVI | 35 |
| Beaumont, Hugh Vermandois | 31st great-granduncle | XXXV | 34 |
| Beaumont, Isabel Vermandois | 31st great-grandaunt | XXXV | 34 |
| Beaumont, Margaret | 30th great-grandaunt | XXXIV | 33 |
| Beaumont, Maud Vermandois | 31st great-grandaunt | XXXV | 34 |
| Beaumont, Robert | 30th great-granduncle | XXXIV | 33 |