Althorp (Viscountcy)
A peerage of the Kingdom of Great Britain.
Letters patent issued on Fri 1st Nov 1765
To John Spencer as Hereditary peerage subsidiary to another created by the same letters patent.
Holders
| Number | Surname | Forenames | Held from | Held to |
|---|---|---|---|---|
| 1st | Spencer | John | Fri 1st Nov 1765 | Fri 31st Oct 1783 |
| 2nd | Spencer | George John | Fri 31st Oct 1783 | Mon 10th Nov 1834 |
| 3rd | Spencer | John Charles | Mon 10th Nov 1834 | Wed 1st Oct 1845 |
| 4th | Spencer | Frederick | Wed 1st Oct 1845 | Sun 27th Dec 1857 |
| 5th | Spencer | John Poyntz | Sun 27th Dec 1857 | Sat 13th Aug 1910 |
| 6th | Spencer | Charles Robert | Sat 13th Aug 1910 | Tue 26th Sep 1922 |
| 7th | Spencer | Albert Edward John | Tue 26th Sep 1922 | Mon 9th Jun 1975 |
| 8th | Spencer | Edward John | Mon 9th Jun 1975 | Sun 29th Mar 1992 |
| 9th | Spencer | Charles Edward Maurice | Sun 29th Mar 1992 | - |