Oil on canvas, 74.9cm by 62.2cm. Inscribed with the identity of the sitter.
Brown was retained by Brownlow, 9th Earl of Exeter (1725-1793) as a garden designer and architect between 1755 and 1778.
He completely redesigned the garden and park at Burghley and was responsible for the building of the stables and the Orangery, as well as making alterations to the House.
Dance, who studied art in Italy, became a successful portrait painter and was a founder member of the Royal Academy in 1768.
However, in 1790 he gave up his artistic career to become a politician, serving as a Member of Parliament until his death in 1811.
The portrait is a copy of the original in the National Portrait Gallery, London.