| Name | Relationship with Natalie Seiwell | Civil | Canon |
| MacMurdac, Maldouen | 28th great-grandfather | XXX | 30 |
| Macrory, James | 23rd great-grandfather | XXV | 25 |
| 24th great-grandfather | XXVI | 26 |
| 25th great-grandfather | XXVII | 27 |
| 26th great-grandfather | XXVIII | 28 |
| Macrory, Jean Or Jane | 22nd great-grandmother | XXIV | 24 |
| 23rd great-grandmother | XXV | 25 |
| 24th great-grandmother | XXVI | 26 |
| 25th great-grandmother | XXVII | 27 |
| Wife of the 23rd great-granduncle | | |
| Wife of the 24th great-granduncle | | |
| Wife of the 25th great-granduncle | | |
| Wife of the 26th great-granduncle | | |
| Wife of the 27th great-granduncle | | |
| Wife of the 28th great-granduncle | | |
| Wife of the 3rd cousin 25 times removed | | |
| Wife of the 3rd cousin 26 times removed | | |
| Wife of the 3rd cousin 27 times removed | | |
| Wife of the 3rd cousin 28 times removed | | |
| Wife of the 3rd cousin 29 times removed | | |
| MacTaggart, Hugh Balliol | 22nd great-grandfather | XXIV | 24 |
| 2nd cousin 22 times removed | XXVIII | 25 |
| 2nd cousin 23 times removed | XXIX | 26 |
| 2nd cousin 26 times removed | XXXII | 29 |
| MacTaggart, Uilliam | 24th great-grandfather | XXVI | 26 |
| Husband of the 22nd great-grandaunt | | |
| Husband of the 23rd great-grandaunt | | |
| Husband of the 26th great-grandaunt | | |
| MacTaggart, Uilliam Comyn | 23rd great-grandfather | XXV | 25 |
| 1st cousin 23 times removed | XXVII | 25 |
| 1st cousin 24 times removed | XXVIII | 26 |
| 1st cousin 27 times removed | XXXI | 29 |
| Madadsson, Harald II Hakonsdatter | 25th great-grandfather | XXVII | 27 |
| Maerklin, Klaus | 19th great-grandfather | XXI | 21 |
| Maerklin, Klaus | 18th great-grandfather | XX | 20 |
| Maerklin, Paul | 17th great-grandfather | XIX | 19 |
| Magdalena | 6th great-grandmother | VIII | 8 |
| Magdalene | 6th great-grandmother | VIII | 8 |
| Malissa Or Malissia | 2nd great-grandmother | IV | 4 |
| Wife of the 14th cousin 3 times removed | | |
| Wife of the 13th cousin 5 times removed | | |
| Wife of the 14th cousin 4 times removed | | |
| Wife of the 17th cousin once removed | | |
| Wife of the 14th cousin 7 times removed | | |
| Wife of the 15th cousin 6 times removed | | |
| Wife of the 17th cousin twice removed | | |
| Wife of the 16th cousin 4 times removed | | |
| Wife of the 18th cousin once removed | | |
| Wife of the 15th cousin 7 times removed | | |
| Wife of the 17th cousin 3 times removed | | |