| Authorised form of name | Stewart; Henry Robert (1769 - 1822); 2nd Marquess of Londonderry |
| Dates | 1769 - 1822 |
| Date of birth | 18 June 1769 |
| Date of death | 12 August 1822 |
| DatesAndPlaces | Burial: Westminster Abbey, between the graves of Pitt and Fox |
| Activity | Honours: KG 1814
|
| Membership category | Fellow |
| Date of election | 11/11/1802 |
| Relationships | Became Marquess of Londonderry (after 1802) |
| Source | Sources: Bulloch's Roll; DNB Notes: Held courtesy title Viscount Castlereagh between 1796 and 1821. |
| Code | NA213 |
Archives associated with this Fellow
| RefNo | Title | Date |
| IM/005602 | Stewart, Henry Robert, 2nd Marquess of Londonderry, Viscount Castlereagh | nd |