Joshua Reynolds
(1723 - 1792)
 

Sir Joshua Reynolds PRA FRS FRSA was an English painter who specialised in portraits. John Russell said he was one of the major European painters of the 18th century. He promoted the "Grand Style" in painting, which depended on idealisation of the imperfect. He was a founder and first president of the Royal Academy of Arts and was knighted by George III in 1769.

https://en.wikipedia.org/wiki/Joshua_Reynolds

Portrait of Master Bunbury
1780-1781
Oil on canvas
76,5 x 63,8 cm
Philadelphia Museum of Art
https://philamuseum.org/collection/object/103817

The sitter is Reynolds's three-year-old godson, whose attention the artist captured during the long sittings by telling fairy tales.