Edgcumbe is one of the younger figures looking over the shoulder of Charles Loraine Smith and by a group who are admiring a painting on the left of the picture.
[1] He gained the courtesy title, Viscount Valletort, when his father was made Earl of Mount Edgcumbe in 1789.
He served under the Duke of Portland and Spencer Perceval as Captain of the Honourable Band of Gentlemen Pensioners between 1808 and 1812.
He also composed an Italian opera seria, Zenobia, which was staged but once at the King's Theatre in 1800,[8] starring Brigida Banti.
[2] He died at his home on Richmond Hill and is buried at St Peter's Church, Petersham, Richmond-upon-Thames.