| Name | Relationship with Natalie Seiwell | Civil | Canon |
| Husband of the 1st cousin 31 times removed | | |
| Zouche, Alan Longespee | 22nd great-grandfather | XXIV | 24 |
| 25th great-grandfather | XXVII | 27 |
| 7th cousin 22 times removed | XXXVIII | 30 |
| 5th cousin 26 times removed | XXXVIII | 32 |
| 6th cousin 25 times removed | XXXIX | 32 |
| 6th cousin 27 times removed | XLI | 34 |
| 7th cousin 25 times removed | XLI | 33 |
| 5th cousin 29 times removed | XLI | 35 |
| Zouche, Eudo | 29th great-grandfather | XXXI | 31 |
| 32nd great-grandfather | XXXIV | 34 |
| Zouche, Eudo Quincy | 23rd great-granduncle | XXVII | 26 |
| 26th great-granduncle | XXX | 29 |
| 6th cousin 23 times removed | XXXVII | 30 |
| 4th cousin 27 times removed | XXXVII | 32 |
| 5th cousin 26 times removed | XXXVIII | 32 |
| 5th cousin 28 times removed | XL | 34 |
| 6th cousin 26 times removed | XL | 33 |
| 4th cousin 30 times removed | XL | 35 |
| Zouche, Geoffrey Bretagne | 27th great-grandfather | XXIX | 29 |
| 30th great-grandfather | XXXII | 32 |
| 2nd cousin 27 times removed | XXXIII | 30 |
| 2nd cousin 30 times removed | XXXVI | 33 |
| Husband of the 29th great-grandaunt | | |
| Husband of the 32nd great-grandaunt | | |
| Zouche, Guethenoc | 31st great-grandfather | XXXIII | 33 |
| 34th great-grandfather | XXXVI | 36 |
| Zouche, Josceline | 30th great-grandfather | XXXII | 32 |
| 33rd great-grandfather | XXXV | 35 |
| Zouche, Margery Quincy | 23rd great-grandaunt | XXVII | 26 |
| 26th great-grandaunt | XXX | 29 |
| 6th cousin 23 times removed | XXXVII | 30 |
| 4th cousin 27 times removed | XXXVII | 32 |
| 5th cousin 26 times removed | XXXVIII | 32 |
| 5th cousin 28 times removed | XL | 34 |
| 6th cousin 26 times removed | XL | 33 |
| 4th cousin 30 times removed | XL | 35 |
| Zouche, Maud Segrave | 21st great-grandmother | XXIII | 23 |
| 24th great-grandmother | XXVI | 26 |
| 8th cousin 21 times removed | XXXIX | 30 |
| 6th cousin 25 times removed | XXXIX | 32 |
| 7th cousin 24 times removed | XL | 32 |
| 7th cousin 26 times removed | XLII | 34 |
| 8th cousin 24 times removed | XLII | 33 |
| 6th cousin 28 times removed | XLII | 35 |
| Zouche, Roger Belmeis | 25th great-grandfather | XXVII | 27 |
| 28th great-grandfather | XXX | 30 |
| 4th cousin 25 times removed | XXXV | 30 |
| 2nd cousin 29 times removed | XXXV | 32 |
| 3rd cousin 28 times removed | XXXVI | 32 |