Who were the three posts-impressionists

Answer: The main post-impressionist painters were Paul Cezanne, Paul Gauguin, Vincent van Gogh, Georges Seurat, Henri Toulouse-Lautrec and Henri Rousseau ('Le Douanier').

Aiming to shake up the contemporary art world, this group of stylistically dissimilar artists-including Paul Cézanne, Paul Gauguin, Vincent van Gogh, Georges Seurat, Henri Toulouse-Lautrec, and Henri Rousseau-formed the Post-Impressionists.