Museum director Christopher Brown said: "The public's response to the campaign for the Manet has been overwhelming.

"The museum is enormously grateful to the Heritage Lottery Fund, the Art Fund, other foundations and many individuals who contributed so generously and helped us save Manet for the public.

"To have succeeded in acquiring the portrait this year, when the UK is in the international spotlight, is something of which the museum and the entire country can be proud.

"This is one of the most important pictures of the 19th century, which has been in Britain since its sale following the artist's death in 1884. Its acquisition has transformed the Ashmolean's collection and has at a stroke made Oxford into a leading centre for the study of Impressionist painting."