| Name | Relationship with Natalie Seiwell | Civil | Canon |
| 16th cousin 12 times removed | XLVI | 29 |
| 11th cousin 22 times removed | XLVI | 34 |
| 15th cousin 15 times removed | XLVII | 31 |
| 16th cousin 13 times removed | XLVII | 30 |
| 14th cousin 17 times removed | XLVII | 32 |
| 13th cousin 19 times removed | XLVII | 33 |
| 15th cousin 16 times removed | XLVIII | 32 |
| 16th cousin 14 times removed | XLVIII | 31 |
| 14th cousin 18 times removed | XLVIII | 33 |
| 13th cousin 20 times removed | XLVIII | 34 |
| 15th cousin 17 times removed | XLIX | 33 |
| 16th cousin 15 times removed | XLIX | 32 |
| 14th cousin 19 times removed | XLIX | 34 |
| 16th cousin 16 times removed | L | 33 |
| 15th cousin 18 times removed | L | 34 |
| Stewart, Robert | 18th great-grandfather | XX | 20 |
| Stewart, Robert Douglas | 22nd great-granduncle | XXVI | 25 |
| 23rd great-granduncle | XXVII | 26 |
| 24th great-granduncle | XXVIII | 27 |
| 25th great-granduncle | XXIX | 28 |
| 26th great-granduncle | XXX | 29 |
| 27th great-granduncle | XXXI | 30 |
| 28th great-granduncle | XXXII | 31 |
| 3rd cousin 25 times removed | XXXIII | 29 |
| 3rd cousin 26 times removed | XXXIV | 30 |
| 3rd cousin 27 times removed | XXXV | 31 |
| 3rd cousin 28 times removed | XXXVI | 32 |
| 3rd cousin 29 times removed | XXXVII | 33 |
| Stewart, Robert Ferrers | 24th great-grandfather | XXVI | 26 |
| Stewart, Robert II Bruce | 19th great-grandfather | XXI | 21 |
| 21st great-grandfather | XXIII | 23 |
| 22nd great-grandfather | XXIV | 24 |
| Half 21st great-granduncle | XXV | 24 |
| Half 22nd great-granduncle | XXVI | 25 |
| 2nd cousin 21 times removed | XXVII | 24 |
| 2nd cousin 22 times removed | XXVIII | 25 |
| 2nd cousin 23 times removed | XXIX | 26 |
| 2nd cousin 24 times removed | XXX | 27 |
| 3rd cousin 22 times removed | XXX | 26 |
| 3rd cousin 23 times removed | XXXI | 27 |
| 3rd cousin 24 times removed | XXXII | 28 |
| 3rd cousin 25 times removed | XXXIII | 29 |
| 3rd cousin 26 times removed | XXXIV | 30 |
| 3rd cousin 27 times removed | XXXV | 31 |
| 6th cousin 22 times removed | XXXVI | 29 |
| 6th cousin 23 times removed | XXXVII | 30 |
| 6th cousin 24 times removed | XXXVIII | 31 |
| 6th cousin 25 times removed | XXXIX | 32 |
| 6th cousin 26 times removed | XL | 33 |
| Husband of the 3rd cousin 21 times removed | | |