| Name | Relationship with Gilbert de Clare | Civil | Canon |
| de Burgh, William | 2nd great-grandson | IV | 4 |
| de Cherleton, Edward | 4th great-grandson | VI | 6 |
| de Cherleton, Joan | 5th great-granddaughter | VII | 7 |
| de Cherleton, John | Husband of the 3rd great-granddaughter | | |
| de Cherlton, Joyce | 5th great-granddaughter | VII | 7 |
| de Clare, Agnes Rose | Daughter | I | 1 |
| de Clare, Eleanor | Great-granddaughter | III | 3 |
| de Clare, Elizabeth | Great-granddaughter | III | 3 |
| de Clare, Gilbert | Self | | 0 |
| de Clare, Gilbert | Son | I | 1 |
| de Clare, Gilbert | Grandson | II | 2 |
| de Clare, Gilbert | Great-grandson | III | 3 |
| de Clare, Isabel | Daughter | I | 1 |
| de Clare, Margaret | Great-granddaughter | III | 3 |
| de Clare, Richard | Son | I | 1 |
| de Clare, Thomas | Grandson | II | 2 |
| de Gaveston, Piers | Husband of the great-granddaughter | | |
| de Grey, Elizabeth | 7th great-granddaughter | IX | 9 |
| de Grey, Henry | 6th great-grandson | VIII | 8 |
| de Grey, John | Husband of the 5th great-granddaughter | | |
| de Holland, Eleanor | Wife of the 4th great-grandson | | |
| de Lacy, Maud | Daughter-in-law | | |
| de Mortimer, William | Husband of the great-granddaughter | | |
| de Mowbray, Roger | Son-in-law | | |
| De Soto, Chlotilde | Wife of the 21st great-grandson | | |
| de Stafford, Hugh | 3rd great-grandson | V | 5 |
| de Stafford, Joan | 3rd great-granddaughter | V | 5 |
| de Stafford, John | Husband of the 3rd great-granddaughter | | |
| de Stafford, Margaret | 3rd great-granddaughter | V | 5 |
| de Stafford, Ralph | Husband of the 2nd great-granddaughter | | |
| de Stafford, Ralph | 3rd great-grandson | V | 5 |
| de Verdon, Theobald | Husband of the great-granddaughter | | |
| DeBerry, Katherine | Wife of the 25th great-grandson | | |
| DeBerry-Gearld, Derrick Jacob | 26th great-grandson | XXVIII | 28 |
| Delancy, Mary | Wife of the 19th great-grandson | | |
| Delaval, John | Husband of the 14th great-granddaughter | | |
| Delay, Eliza Balche | Wife of the 20th great-grandson | | |
| Denn, Elizabeth Bacon | Wife of the 19th great-grandson | | |
| Dennis, Sarah | Wife of the 18th great-grandson | | |
| Depuy, Mary Rivers nee | Wife of the 17th great-grandson | | |
| Diiehl, George | Husband of the 19th great-granddaughter | | |
| Dillon, Genevieve | Wife of the 21st great-grandson | | |
| Dinmore, Emma | Wife of the 21st great-grandson | | |
| Dismore, Charles | Husband of the 25th great-granddaughter | | |
| Ditchfield, Helen Theresa Mary | 22nd great-granddaughter | XXIV | 24 |
| Ditchfield, Samuel James | Husband of the 21st great-granddaughter | | |
| Dobson, Jeane | Wife of the 19th great-grandson | | |
| Dodge, Cynthia Ann | Wife of the 24th great-grandson | | |
| Donahoo, Mary Amanda | Wife of the 20th great-grandson | | |
| Donaldson, Pamela Marie | Wife of the 25th great-grandson | | |