| Name | Relationship with Natalie Seiwell | Civil | Canon |
| 8th cousin 23 times removed | XLI | 32 |
| 8th cousin 25 times removed | XLIII | 34 |
| 9th cousin 23 times removed | XLIII | 33 |
| 7th cousin 27 times removed | XLIII | 35 |
| Holland, Elizabeth Zouche | 20th great-grandaunt | XXIV | 23 |
| 23rd great-grandaunt | XXVII | 26 |
| 9th cousin 20 times removed | XL | 30 |
| 7th cousin 24 times removed | XL | 32 |
| 8th cousin 23 times removed | XLI | 32 |
| 8th cousin 25 times removed | XLIII | 34 |
| 9th cousin 23 times removed | XLIII | 33 |
| 7th cousin 27 times removed | XLIII | 35 |
| Holland, Isabel Zouche | 20th great-grandaunt | XXIV | 23 |
| 23rd great-grandaunt | XXVII | 26 |
| 9th cousin 20 times removed | XL | 30 |
| 7th cousin 24 times removed | XL | 32 |
| 8th cousin 23 times removed | XLI | 32 |
| 8th cousin 25 times removed | XLIII | 34 |
| 9th cousin 23 times removed | XLIII | 33 |
| 7th cousin 27 times removed | XLIII | 35 |
| Holland, Isabella Zouche | 20th great-grandaunt | XXIV | 23 |
| 23rd great-grandaunt | XXVII | 26 |
| 9th cousin 20 times removed | XL | 30 |
| 7th cousin 24 times removed | XL | 32 |
| 8th cousin 23 times removed | XLI | 32 |
| 8th cousin 25 times removed | XLIII | 34 |
| 9th cousin 23 times removed | XLIII | 33 |
| 7th cousin 27 times removed | XLIII | 35 |
| Holland, Jane Zouche | 20th great-grandaunt | XXIV | 23 |
| 23rd great-grandaunt | XXVII | 26 |
| 9th cousin 20 times removed | XL | 30 |
| 7th cousin 24 times removed | XL | 32 |
| 8th cousin 23 times removed | XLI | 32 |
| 8th cousin 25 times removed | XLIII | 34 |
| 9th cousin 23 times removed | XLIII | 33 |
| 7th cousin 27 times removed | XLIII | 35 |
| Holland, John Zouche | 20th great-granduncle | XXIV | 23 |
| 23rd great-granduncle | XXVII | 26 |
| 9th cousin 20 times removed | XL | 30 |
| 7th cousin 24 times removed | XL | 32 |
| 8th cousin 23 times removed | XLI | 32 |
| 8th cousin 25 times removed | XLIII | 34 |
| 9th cousin 23 times removed | XLIII | 33 |
| 7th cousin 27 times removed | XLIII | 35 |
| Holland, Margaret Fitzalan | 18th great-grandmother | XX | 20 |
| 21st great-grandmother | 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 |