Henri De Groux was a Belgian Symbolist painter, sculptor and lithographer. His 1889 painting Christ aux Outrages, widely described as his masterwork, depicted Jesus being attacked by a mob. Later in life, he produced many works depicting the horrors of the First World War.
De Groux was a member of les XX, but was expelled when he refused to have his works displayed in the same gallery as Vincent van Gogh. He subsequently moved to Paris, where he befriended Emile Zola; during the social unrest resulting from the Dreyfus affair, de Groux acted as one of Zola's bodyguards.
As well, de Groux was a fervent diarist; beginning in 1892, he produced 18 volumes detailing the life of a European artist in the late 19th and early 20th centuries.