| Name | Relationship with Natalie Seiwell | Civil | Canon |
| 23rd great-granduncle | XXVII | 26 |
| 24th great-granduncle | XXVIII | 27 |
| 26th great-granduncle | XXX | 29 |
| Comyn, Elizabeth Colhan | 22nd great-grandaunt | XXVI | 25 |
| 23rd great-grandaunt | XXVII | 26 |
| 24th great-grandaunt | XXVIII | 27 |
| 26th great-grandaunt | XXX | 29 |
| Comyn, Idione Colhan | 22nd great-grandaunt | XXVI | 25 |
| 23rd great-grandaunt | XXVII | 26 |
| 26th great-grandmother | XXVIII | 28 |
| 24th great-grandaunt | XXVIII | 27 |
| Wife of the 1st cousin 29 times removed | | |
| Comyn, Isabel | 23rd great-grandmother | XXV | 25 |
| 25th great-grandmother | XXVII | 27 |
| 26th great-grandmother | XXVIII | 28 |
| Comyn, Jean Colhan | 24th great-grandmother | XXVI | 26 |
| 22nd great-grandaunt | XXVI | 25 |
| 23rd great-grandaunt | XXVII | 26 |
| 26th great-grandaunt | XXX | 29 |
| Comyn, John | 26th great-grandfather | XXVIII | 28 |
| 27th great-grandfather | XXIX | 29 |
| 28th great-grandfather | XXX | 30 |
| 30th great-grandfather | XXXII | 32 |
| Comyn, Margaret Colhan | 22nd great-grandmother | XXIV | 24 |
| 23rd great-grandmother | XXV | 25 |
| 24th great-grandaunt | XXVIII | 27 |
| 26th great-grandaunt | XXX | 29 |
| Comyn, Marjorie Or Marjorie Or Bridget | 21st great-grandmother | XXIII | 23 |
| 23rd great-grandmother | XXV | 25 |
| 24th great-grandmother | XXVI | 26 |
| 25th great-grandmother | XXVII | 27 |
| Wife of the 22nd great-granduncle | | |
| Wife of the 24th great-granduncle | | |
| Wife of the 2nd cousin 22 times removed | | |
| Wife of the 2nd cousin 26 times removed | | |
| Wife of the 2nd cousin 27 times removed | | |
| Wife of the 2nd cousin 28 times removed | | |
| Wife of the 5th cousin 22 times removed | | |
| Wife of the 5th cousin 23 times removed | | |
| Wife of the 5th cousin 24 times removed | | |
| Wife of the 5th cousin 25 times removed | | |
| Wife of the 5th cousin 26 times removed | | |
| Wife of the 5th cousin 27 times removed | | |
| Wife of the 5th cousin 28 times removed | | |
| Comyn, Richard Banaster | 24th great-grandfather | XXVI | 26 |
| 25th great-grandfather | XXVII | 27 |
| 26th great-grandfather | XXVIII | 28 |
| 28th great-grandfather | XXX | 30 |
| Comyn, Richard Colhan | 22nd great-granduncle | XXVI | 25 |
| 23rd great-granduncle | XXVII | 26 |