Sir John Everett Millais was a prominent English painter and illustrator of the 19th century. He was a founding member of the Pre-Raphaelite Brotherhood, a group of artists who sought to create art that was true to nature and free from the artificial conventions of the time. Millais was known for his detailed and realistic style, and he often depicted historical and literary subjects in his work. Some of his most famous paintings include "Ophelia" and "The Boyhood of Raleigh." Millais was also a successful portrait painter and became the President of the Royal Academy of Arts in 1896. His work had a significant influence on the development of British art and continues to be celebrated today.