| Name | Relationship with Isabella de Taillefer | Civil | Canon |
| Alfonso | Great-grandson | III | 3 |
| Alice | Granddaughter | II | 2 |
| Alice | Great-granddaughter | III | 3 |
| Allen, Hannah | 18th great-granddaughter | XX | 20 |
| 19th great-granddaughter | XXI | 21 |
| Allen, Jedidiah | Husband of the 17th great-granddaughter | | |
| Husband of the 18th great-granddaughter | | |
| Allender, Paul | Husband of the 24th great-granddaughter | | |
| Husband of the 25th great-granddaughter | | |
| Allison, Eliza Angus | Wife of the 19th great-grandson | | |
| Wife of the 20th great-grandson | | |
| Allum, Rachel Mary | Wife of the 19th great-grandson | | |
| Wife of the 20th great-grandson | | |
| Ames, Elsie | 22nd great-granddaughter | XXIV | 24 |
| 23rd great-granddaughter | XXV | 25 |
| Ames, Oliver | Husband of the 21st great-granddaughter | | |
| Husband of the 22nd great-granddaughter | | |
| Ames, Oliver | 22nd great-grandson | XXIV | 24 |
| 23rd great-grandson | XXV | 25 |
| Ames, Olivia | 22nd great-granddaughter | XXIV | 24 |
| 23rd great-granddaughter | XXV | 25 |
| Ames, Richard | 22nd great-grandson | XXIV | 24 |
| 23rd great-grandson | XXV | 25 |
| Amy | Wife of the 25th great-grandson | | |
| Wife of the 26th great-grandson | | |
| Andersen, Ruth Marie | Wife of the 23rd great-grandson | | |
| Wife of the 24th great-grandson | | |
| Anderson, Samuel | Husband of the 21st great-granddaughter | | |
| Husband of the 22nd great-granddaughter | | |
| Andrews, Grace | Wife of the 21st great-grandson | | |
| Wife of the 22nd great-grandson | | |
| Applegate, Kenneth | Husband of the 25th great-granddaughter | | |
| Husband of the 26th great-granddaughter | | |
| Arrison, James Matthew | 22nd great-grandson | XXIV | 24 |
| 23rd great-grandson | XXV | 25 |
| Arrison, William Ernest | Husband of the 21st great-granddaughter | | |
| Husband of the 22nd great-granddaughter | | |
| Ashford, Nancy | Wife of the 24th great-grandson | | |
| Wife of the 25th great-grandson | | |
| Atkinson, Esther C. | Wife of the 20th great-grandson | | |
| Wife of the 21st great-grandson | | |
| Avery, Husband | Husband of the 23rd great-granddaughter | | |
| Husband of the 24th great-granddaughter | | |
| Avery, Kristy | 24th great-granddaughter | XXVI | 26 |
| 25th great-granddaughter | XXVII | 27 |
| Bailey, James | Husband of the 19th great-granddaughter | | |
| Husband of the 20th great-granddaughter | | |
| Baker, Mary | 20th great-granddaughter | XXII | 22 |
| 21st great-granddaughter | XXIII | 23 |
| Baker, Nathan | Husband of the 19th great-granddaughter | | |