Barony de Grave
The Barony of de Grave is a well-established title with its historic seat at Copperdene, Wiltshire.
Title holders
- 15th Baron de Grave: George Grenfell (d 1765)
- 16th Baron de Grave: George Grenfell (d 1805)
- 17th Baron de Grave: George Grey Grenfell (d 1808)
- 18th Baron de Grave: Leander Grenfell (d 1809)
- 19th Baron de Grave Robin Grenfell (born 1808)