| Authorised form of name | Ponsonby; William Francis Spencer (1787 - 1855); 1st Baron de Mauley |
| Dates | 1787 - 1855 |
| Nationality | British |
| Place of birth | Cavendish Square, London, England |
| Date of birth | 31 July 1787 |
| Place of death | 21 St James's Place, Westminster |
| Date of death | 16 May 1855 |
| DatesAndPlaces | Burial:
Hatherop, Gloucestershire |
| Activity | Education:
Harrow School
Honours:
Baron 1838
|
| Membership category | Fellow |
| Date of election | 02/02/1832 |
| Source | Sources:
Bulloch's Roll |
| Code | NA2490 |
Archives associated with this Fellow
| RefNo | Title | Date |
| EC/1832/04 | Ponsonby, William Francis Spencer, 1st Baron de Mauley: certificate of election to the Royal Society | |