| Name | Relationship with John FitzAlan | Civil | Canon |
|---|
| Half 4th cousin | X | 5 |
| Henry II | 3rd great-grandfather | V | 5 |
| Henry III | 2nd great-granduncle | VI | 5 |
| Henry III | Husband of the 1st cousin twice removed | | |
| Husband of the half 2nd cousin twice removed | | |
| Henry, III | 2nd great-grandfather | IV | 4 |
| Half 2nd great-granduncle | VI | 5 |
| Henry, IV | 1st cousin once removed | V | 3 |
| Half 2nd cousin twice removed | VIII | 5 |
| 3rd cousin once removed | IX | 5 |
| Half 4th cousin once removed | XI | 6 |
| 4th cousin twice removed | XII | 7 |
| Half 4th cousin twice removed | XII | 7 |
| Husband of the 3rd cousin twice removed | | |
| Husband of the half 4th cousin twice removed | | |
| Henry, V | 1st cousin twice removed | VI | 4 |
| Half 2nd cousin 3 times removed | IX | 6 |
| 3rd cousin twice removed | X | 6 |
| 3rd cousin 3 times removed | XI | 7 |
| Half 4th cousin twice removed | XII | 7 |
| 4th cousin 3 times removed | XIII | 8 |
| Half 4th cousin 3 times removed | XIII | 8 |
| Heriot, Elphinstone Margaret | 16th great-grandniece | XX | 19 |
| 1st cousin 18 times removed | XXII | 20 |
| Half 2nd cousin 19 times removed | XXV | 22 |
| 3rd cousin 18 times removed | XXVI | 22 |
| 3rd cousin 19 times removed | XXVII | 23 |
| 4th cousin 17 times removed | XXVII | 22 |
| Half 4th cousin 18 times removed | XXVIII | 23 |
| 4th cousin 18 times removed | XXVIII | 23 |
| 4th cousin 19 times removed | XXIX | 24 |
| Half 4th cousin 19 times removed | XXIX | 24 |
| Heriot, Florence Edgar | 16th great-grandniece | XX | 19 |
| 1st cousin 18 times removed | XXII | 20 |
| Half 2nd cousin 19 times removed | XXV | 22 |
| 3rd cousin 18 times removed | XXVI | 22 |
| 3rd cousin 19 times removed | XXVII | 23 |
| 4th cousin 17 times removed | XXVII | 22 |
| Half 4th cousin 18 times removed | XXVIII | 23 |
| 4th cousin 18 times removed | XXVIII | 23 |
| 4th cousin 19 times removed | XXIX | 24 |
| Half 4th cousin 19 times removed | XXIX | 24 |
| Heriot, James | Husband of the 15th great-grandniece | | |
| Husband of the 1st cousin 17 times removed | | |
| Husband of the half 2nd cousin 18 times removed | | |
| Husband of the 3rd cousin 17 times removed | | |
| Husband of the 3rd cousin 18 times removed | | |
| Husband of the 4th cousin 16 times removed | | |
| Husband of the half 4th cousin 17 times removed | | |
| Husband of the 4th cousin 17 times removed | | |
