Edmonstone, the eldest son of Sir Charles Edmonstone, 2nd Baronet, by his first wife Emma, fifth daughter of Richard Wilbraham Bootle of Rode Hall, Cheshire, and sister of Edward Bootle-Wilbraham, 1st Baron Skelmersdale, was born at 32 Great Russell Street, Bloomsbury, London, on 12 March 1795, and entered Eton in 1808.
He removed in 1812 to Christ Church, Oxford, where he proceeded B.A.
[1] In 1819 he went to Egypt, where he visited and explored two of the oases in the great desert, of which he published an account, with views and plans of the ruined temples and tombs.
[1] He married, on 10 October 1832, his cousin-german Emma, third daughter of Randle Wilbraham of Rode Hall, Cheshire, and had issue three daughters, who all died in their infancy.
[1] He died at 34 Wilton Place, Belgrave Square, London, on 13 March 1871, leaving a personal fortune of £12,000.