In Greek myth, Pandora was handed a box by the god Zeus and ordered not to open it — but unleashed evil into the world when she ignored the warning.
When Rossetti painted Pandora, starting in 1868, he had recently been persuaded to open his wife’s grave to remove a manuscript of poems from her coffin, which was said to have unleashed torments for himself.
The painting is a highlight of Sotheby’s sale of British and Irish art on May 22.