Francis Bacon (1909–1992), Three Figures and Portrait, 1975, Oil and pastel on canvas, 198.1 x 147.3 cm, Purchased 1977, T02112, Tate © the estate of Francis Bacon. All rights reserved. DACS 2017. Photo credit: Tate.

Francis Bacon (1909–1992), Study for Portrait II (after the Life Mask of William Blake), 1955, Oil on canvas, 61 x 50.8 cm, Purchased 1979, T02414, Tate © the estate of Francis Bacon. All rights reserved. DACS 2017. Photo credit: Tate.

Francis Bacon (1909–1992), Seated Figure, 1961, Oil on canvas, 165.1 x 142.2 cm, Presented by J. Sainsbury Ltd 1961, T00459, Tate © the estate of Francis Bacon. All rights reserved. DACS 2017. Photo credit: Tate.

Francis Bacon (1909–1992), Three Studies for Figures at the Base of a Crucifixion, c.1944. Oil on board. Presented by Eric Hall 1953, N06171, Tate © the estate of Francis Bacon. All rights reserved. DACS 2017. Photo credit: Tate.

Francis Bacon (1909–1992), Figures in a Garden, c.1936. Oil on canvas, 74 x 94 cm (E). Accepted by HM Government in lieu of inheritance tax and allocated to the Tate Gallery 2007, T12539, Tate © the estate of Francis Bacon. All rights reserved. DACS 2017. Photo credit: Tate.

Francis Bacon (1909–1992), Study for a Portrait, 1952. Oil and sand on canvas, 66.1 x 56.1 cm. Bequeathed by Simon Sainsbury 2006, accessioned 2008, T12616, Tate © the estate of Francis Bacon. All rights reserved. DACS 2017. Photo credit: Tate.