René Magritte’s ‘superstar of surrealism’ to go on sale in Paris

La Magie Noire, bought by family of wartime resistance heroine 90 years ago, expected to fetch more than 7m

A painting by the surrealist artist Rene Magritte that has been held in a private collection for more than 90 years will go on sale later this month.

La Magie Noire was bought by the family of the second world war resistance heroine Suzanne Spaak, who were Magritte's benefactors at a time when he was struggling financially and had failed to sell a single work for two years.