Fidus was the pseudonym used by German illustrator, painter and publisher Hugo Reinhold Karl Johann Höppener (October 8, 1868 – February 23, 1948). He was a symbolist artist, whose work directly influenced the psychedelic style of graphic design of the late 1960s.
Adolphe Léon Willette (30 July 1857 in Châlons-sur-Marne – 4 February 1926 in Paris) was a French painter, illustrator, caricaturist, and lithographer, as well as an architect of the famous Moulin Rouge cabaret. Willette ran as an "anti-semitic" candidate in the 9th arrondissement of Paris for the September 1889 legislative elections.