| Ferdinand William Cavendish-Bentinck |
of Portland (Dukedom) |
Mon 21st Mar 1977 |
Sat 13th Dec 1980 |
| William Pulteney |
Pulteney (Viscountcy) |
Sat 14th Jul 1742 |
Sat 7th Jul 1764 |
| Thomas Parker |
Parker (Barony) |
Tue 10th Mar 1716 |
Mon 28th Apr 1732 |
| George Roger Alexander Thomas Parker |
Parker (Barony) |
Sat 20th Sep 1975 |
Mon 7th Dec 1992 |
| Richard Timothy George Parker |
Parker (Barony) |
Mon 7th Dec 1992 |
|
| Thomas Augustus Wolstenholme Parker |
Parker (Barony) |
Sun 31st Mar 1850 |
Fri 24th Jul 1896 |
| George Parker |
Parker (Barony) |
Mon 9th Feb 1795 |
Sun 20th Mar 1842 |
| Thomas Parker |
Parker (Barony) |
Sun 20th Mar 1842 |
Sun 31st Mar 1850 |
| George Loveden William Henry Parker |
Parker (Barony) |
Fri 24th Jul 1896 |
Sat 20th Sep 1975 |
| Edmond Sexten Pery |
Pery (Viscountcy) |
Fri 30th Dec 1785 |
Mon 24th Feb 1806 |
| William Bentinck |
of Portland (Earldom) |
Sat 9th Apr 1689 |
Sat 23rd Nov 1709 |
| Henry Bentinck |
of Portland (Earldom) |
Sat 23rd Nov 1709 |
Thu 4th Jul 1726 |
| William John Arthur Charles James Cavendish-Bentinck |
of Portland (Earldom) |
Sat 6th Dec 1879 |
Mon 26th Apr 1943 |
| William Arthur Henry Cavendish-Bentinck |
of Portland (Earldom) |
Mon 26th Apr 1943 |
Mon 21st Mar 1977 |
| Victor Frederick William Cavendish-Bentinck |
of Portland (Earldom) |
Sat 13th Dec 1980 |
Mon 30th Jul 1990 |
| Henry Noel Bentinck |
of Portland (Earldom) |
Mon 30th Jul 1990 |
Thu 30th Jan 1997 |
| Timothy Charles Robert Noel Bentinck |
of Portland (Earldom) |
Thu 30th Jan 1997 |
|
| William Bentinck |
of Portland (Earldom) |
Thu 4th Jul 1726 |
Sat 1st May 1762 |
| William Henry Cavendish Cavendish-Bentinck |
of Portland (Earldom) |
Sat 1st May 1762 |
Mon 30th Oct 1809 |
| William Henry Cavendish Cavendish-Scott-Bentinck |
of Portland (Earldom) |
Mon 30th Oct 1809 |
Mon 27th Mar 1854 |