The Pre-Raphaelite Brotherhood (also known as the Pre-Raphaelites) was a group of English painters, poets, and critics, founded in 1848 by William Holman Hunt, John Everett Millais and Dante Gabriel Rossetti. The three founders were joined by William Michael Rossetti, James Collinson, Frederic George Stephens and Thomas Woolner to form the seven-member "brotherhood".

The group's intention was to reform art by rejecting what it considered the mechanistic approach first adopted by Mannerist artists who succeeded Raphael and Michelangelo. Its members believed the Classical poses and elegant compositions of Raphael in particular had been a corrupting influence on the academic teaching of art, hence the name "Pre-Raphaelite". In particular, the group objected to the influence of Sir Joshua Reynolds, founder of the English Royal Academy of Arts, whom they called "Sir Sloshua". To the Pre-Raphaelites, according to William Michael Rossetti, "sloshy" meant "anything lax or scamped in the process of painting ... and hence ... any thing or person of a commonplace or conventional kind". In contrast, the brotherhood wanted a return to the abundant detail, intense colours and complex compositions of Quattrocento Italian art.

Through the PRB initials, the brotherhood announced in coded form the arrival of a new movement in British art. The group continued to accept the concepts of history painting and mimesis, imitation of nature, as central to the purpose of art. The Pre-Raphaelites defined themselves as a reform movement, created a distinct name for their form of art, and published a periodical, The Germ, to promote their ideas. The group's debates were recorded in the Pre-Raphaelite Journal.