| Nicholas Power Richard Le Poer Trench |
of Clancarty (Earldom) |
Thu 18th May 1995 |
|
| William Thomas Le Poer Trench |
of Clancarty (Earldom) |
Fri 24th Nov 1837 |
Fri 26th Apr 1872 |
| Richard Somerset Le Poer Trench |
of Clancarty (Earldom) |
Fri 26th Apr 1872 |
Fri 29th May 1891 |
| William Frederick Le Poer Trench |
of Clancarty (Earldom) |
Fri 29th May 1891 |
Sat 16th Feb 1929 |
| Richard Frederick John Donough Le Poer Trench |
of Clancarty (Earldom) |
Sat 16th Feb 1929 |
Sat 5th Jun 1971 |
| Greville Sydney Rochfort Le Poer Trench |
of Clancarty (Earldom) |
Sat 5th Jun 1971 |
Mon 15th Sep 1975 |
| Robert Stewart |
Castlereagh (Viscountcy) |
Thu 1st Oct 1795 |
Fri 6th Apr 1821 |
| Charles William Vane |
Castlereagh (Viscountcy) |
Mon 12th Aug 1822 |
Mon 6th Mar 1854 |
| George Henry Robert Charles Vane-Tempest |
Castlereagh (Viscountcy) |
Mon 25th Nov 1872 |
Thu 6th Nov 1884 |
| Alexander Charles Robert Vane-Tempest-Stewart |
Castlereagh (Viscountcy) |
Mon 17th Oct 1955 |
Wed 20th Jun 2012 |
| Robert Stewart |
Castlereagh (Viscountcy) |
Fri 6th Apr 1821 |
Mon 12th Aug 1822 |
| Frederick William Robert Stewart |
Castlereagh (Viscountcy) |
Mon 6th Mar 1854 |
Mon 25th Nov 1872 |
| Charles Stewart Vane-Tempest-Stewart |
Castlereagh (Viscountcy) |
Thu 6th Nov 1884 |
Mon 8th Feb 1915 |
| Charles Stewart Henry Vane-Tempest-Stewart |
Castlereagh (Viscountcy) |
Mon 8th Feb 1915 |
Fri 11th Feb 1949 |
| Edward Charles Stewart Robert Vane-Tempest-Stewart |
Castlereagh (Viscountcy) |
Fri 11th Feb 1949 |
Mon 17th Oct 1955 |
| Assheton Curzon |
Curzon (Barony) |
Wed 13th Aug 1794 |
Tue 21st Mar 1820 |
| Frederick Richard Penn Curzon |
Curzon (Barony) |
Tue 29th May 1984 |
|
| Richard William Penn Howe |
Curzon (Barony) |
Tue 21st Mar 1820 |
Thu 12th May 1870 |
| George Augustus Frederick Louis Curzon-Howe |
Curzon (Barony) |
Thu 12th May 1870 |
Fri 4th Feb 1876 |
| Richard William Penn Curzon-Howe |
Curzon (Barony) |
Fri 4th Feb 1876 |
Tue 25th Sep 1900 |