Sidney Richard Percy (1821-1886) was an English landscape painter during the Victorian era, and a member of the Williams family of painters, the Barnes School*.

Sidney Richard Percy was born Sidney Richard Percy Williams in 1821 in London. He was the fifth son of the painter Edward Williams (1781-1855) and Ann Hildebrandt (c.1780-1851), and a member of the Williams family of painters, who were related to such famous artists as James Ward, R.A. and George Morland. His father was a well-known landscape artist, who taught him how to paint; otherwise he received no formal instruction. Although his early paintings were signed "Sidney Williams", he used the name "Percy" from the age of 20 onwards to differentiate himself from the other art...