Augustus Fitzwalter St. John-Mildmay

Augustus Fitzwalter St. John-Mildmay, who died in 1839, was the son of Harriet Bouverie, who lived from 1790 to 1834. Harriet Bouverie was the mother of Archibald Primrose, Lord Dalmeny, who was a British politician active from 1809 to 1851, and the grandfather of Archibald Primrose, the 5th Earl of Rosebery, a prominent British Liberal politician and Prime Minister of the United Kingdom from 1847 to 1929.