| Name | Relationship with John FitzAlan | Civil | Canon |
|---|
| 3rd cousin 17 times removed | XXV | 21 |
| 3rd cousin 18 times removed | XXVI | 22 |
| 4th cousin 16 times removed | XXVI | 21 |
| Half 4th cousin 17 times removed | XXVII | 22 |
| 4th cousin 17 times removed | XXVII | 22 |
| 4th cousin 18 times removed | XXVIII | 23 |
| Half 4th cousin 18 times removed | XXVIII | 23 |
| Powell, Mabel | 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 |
| Powell, Mary | 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 |
| Powell, Mary Gibbs | 15th great-grandniece | XIX | 18 |
| 1st cousin 17 times removed | XXI | 19 |
| Half 2nd cousin 18 times removed | XXIV | 21 |
| 3rd cousin 17 times removed | XXV | 21 |
| 3rd cousin 18 times removed | XXVI | 22 |
| 4th cousin 16 times removed | XXVI | 21 |
| Half 4th cousin 17 times removed | XXVII | 22 |
| 4th cousin 17 times removed | XXVII | 22 |
| 4th cousin 18 times removed | XXVIII | 23 |
| Half 4th cousin 18 times removed | XXVIII | 23 |
| Powell, Preston | 16th great-grandnephew | 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 |
| Powell, Preston Firth | 15th great-grandnephew | XIX | 18 |
| 1st cousin 17 times removed | XXI | 19 |
| Half 2nd cousin 18 times removed | XXIV | 21 |
