| Kenneth Mackenzie |
of Seaforth (Earldom) |
Tue 3rd Dec 1771 |
Mon 27th Aug 1781 |
| William Ulick Tristram St Lawrence |
St Lawrence (Viscountcy) |
Wed 4th Feb 1874 |
Tue 9th Mar 1909 |
| Thomas St Lawrence |
St Lawrence (Viscountcy) |
Thu 3rd Sep 1767 |
Tue 29th Sep 1801 |
| William St Lawrence |
St Lawrence (Viscountcy) |
Tue 29th Sep 1801 |
Thu 4th Apr 1822 |
| Thomas St Lawrence |
St Lawrence (Viscountcy) |
Thu 4th Apr 1822 |
Wed 4th Feb 1874 |
| Thomas Henry Sanderson |
Sanderson, of Armthorpe in the County of York (Barony) |
Wed 20th Dec 1905 |
Wed 21st Mar 1923 |
| Charles Montagu |
Sunbury (Viscountcy) |
Fri 19th Oct 1714 |
Sun 19th May 1715 |
| William Joseph Slim |
Slim, of Yarralumla in the Capital Territory of Australia and of Bishopston in the City and County of Bristol (Viscountcy) |
Fri 15th Jul 1960 |
Mon 14th Dec 1970 |
| John Douglas Slim |
Slim, of Yarralumla in the Capital Territory of Australia and of Bishopston in the City and County of Bristol (Viscountcy) |
Mon 14th Dec 1970 |
Sat 12th Jan 2019 |
| Mark William Rawdon Slim |
Slim, of Yarralumla in the Capital Territory of Australia and of Bishopston in the City and County of Bristol (Viscountcy) |
Sat 12th Jan 2019 |
|
| Henry Conyngham |
Slane (Viscountcy) |
Mon 15th Jan 1816 |
Fri 28th Dec 1832 |
| Frederick William Henry Francis Conyngham |
Slane (Viscountcy) |
Mon 1st Apr 1974 |
Tue 3rd Mar 2009 |
| Francis Nathaniel Conyngham |
Slane (Viscountcy) |
Fri 28th Dec 1832 |
Mon 17th Jul 1876 |
| George Henry Conyngham |
Slane (Viscountcy) |
Mon 17th Jul 1876 |
Fri 2nd Jun 1882 |
| Henry Francis Conyngham |
Slane (Viscountcy) |
Fri 2nd Jun 1882 |
Sat 28th Aug 1897 |
| Victor George Henry Francis Conyngham |
Slane (Viscountcy) |
Sat 28th Aug 1897 |
Sat 9th Nov 1918 |
| Frederick William Burton Conyngham |
Slane (Viscountcy) |
Sat 9th Nov 1918 |
Mon 1st Apr 1974 |
| John Ashburnham |
St Asaph (Viscountcy) |
Sun 14th May 1730 |
Sun 10th Mar 1737 |
| George Ashburnham |
St Asaph (Viscountcy) |
Wed 8th Apr 1812 |
Wed 27th Oct 1830 |
| John Ashburnham |
St Asaph (Viscountcy) |
Sun 10th Mar 1737 |
Wed 8th Apr 1812 |