Hungarian-born painter who settled in Paris in 1905 and became a French citizen. In 1910 he began exhibiting with the Cubists, and an exhibition of his work at the Sturm Gallery in Berlin in 1913 helped to make him ‘influential in the rapid diffusion of Cubist ideas in Central Europe before the First World War. He may also have produced between 1909 and 1912 some of the earliest purely abstract drawings’ (George Heard Hamilton). In the 1920s his work was influenced by Surrealism and in the 1930s he made abstract constructions in wood and metal, calling them Formes dans l'espace (he became a member of Abstraction-Création in 1932). Reth's work is often notable for his experimentation with materials: he incorporated sand, cement, egg-shells, plaster, and pebbles in his paint.
From A Dictionary of Modern and Contemporary Art in Oxford Reference.