| Count | Generation, name, (birth - death) |
|---|
| 1 |
1 Fitzgerald, William Robert, Duke of Leinster
(1749-03-12 - 1804-10-20)
|
| 2 |
2 Fitzgerald, Augustus Frederick, Duke of Leinster
(1791-08-21 - 1874-10-10)
|
| 3 |
3 Fitzgerald, Charles William, Duke of Leinster
(1819-03-30 - 1887-02-10)
|
| 4 |
4 Fitzgerald, Gerald (1851), Duke of Leinster
(1851-08-16 - 1893-12-01)
|
| 5 |
5 Fitzgerald, Maurice (1887), Duke of Leinster
(1887-03-01 - 1922-02-04)
|
| 6 |
5 FitzGerald, Edward (1892), Duke of Leinster
(1892-05-06 - 1976-03-08)
|
| 7 |
6 Fitzgerald, Gerald (1914), Duke of Leinster
(1914-05-27 - 2004-12-03)
|
| 8 |
7 Fitzgerald, Maurice, Duke of Leinster
(1948-04-07 - )
|
| 9 |
8 FitzGerald, Thomas (1974)
(1974-01-12 - 1997-05-09)
|
| 10 |
1 FitzGerald, Charlotte Mary Gertrude, Baron Rayleigh
(1758-05-29 - 1836-09-12)
|
| 11 |
2 Strutt, John James, Baron Rayleigh
(1796-01-30 - 1873-06-14)
|
| 12 |
3 Strutt, John William, Baron Rayleigh
(1842-11-12 - 1919-06-30)
|
| 13 |
4 Strutt, Robert John, Baron Rayleigh
(1875-08-28 - 1947-12-13)
|
| 14 |
5 Strutt, John Arthur, Baron Rayleigh
(1908-04-12 - 1988-02-07)
|
| 15 |
5 Strutt, Charles Richard
(1910-05-25 - 1981-12-11)
|
| 16 |
6 Strutt, John Gerald, Baron Rayleigh
(1960-06-04 - )
|
| 17 |
7 Strutt, John Frederick
(1993-03-29 - )
|
| 18 |
7 Strutt, William Hedley Charles
(1994-11-11 - )
|
| 19 |
7 Strutt, Hugo Richard
(1998-02-12 - )
|
| 20 |
7 Strutt, Theodore James
(2000-09-16 - )
|
| 21 |
5 Strutt, Daphne
(1911-11-05 - 2003-02-18)
|
| 22 |
6 Lyon-Dalberg-Acton, Richard Gerald, Baron Acton
(1941-07-30 - 2010-10-10)
|
| 23 |
7 Lyon-Dalberg-Acton, John Charles Ferdinand Harold, Baron Acton
(1966-08-16 - )
|
| 24 |
6 Lyon-Dalberg-Acton, Robert Peter
(1946-06-23 - )
|
| 25 |
7 Lyon-Dalberg-Acton, Christopher Richard Henri
(1977-09 - )
|
| 26 |
6 Lyon-Dalberg-Acton, Edward David Joseph
(1949-02 - )
|
| 27 |
5 Strutt, Hedley Vicars
(1915-02-19 - 2012-03-20)
|
| 28 |
5 Strutt, Guy Robert
(1921-04-16 - 2007-02-09)
|
| 29 |
1 FitzGerald, Henry
(1761-07-30 - 1829-07-09)
|
| 30 |
2 FitzGerald-de Ros, Cecilia
( - 1869-10-06)
|
| 31 |
3 Boyle, Gerald Edmund
(1840-06-20 - 1927-12-28)
|
| 32 |
4 Boyle, William Henry Dudley, Earl of Cork
(1873-11-30 - 1967-04-19)
|
| 33 |
4 Boyle, Reginald Courtenay
(1877-11-22 - 1946-02-16)
|
| 34 |
5 Boyle, Patrick Reginald, Earl of Cork
(1910-02-07 - 1995-08-08)
|
| 35 |
5 Boyle, John William (1916), Earl of Cork
(1916-05-12 - 2003-11-14)
|
| 36 |
6 Boyle, John Richard (1945), Earl of Cork
(1945-11-03 - )
|
| 37 |
7 Boyle, Rory Jonathan Courtenay
(1978-12-10 - )
|
