However, Adolf Hitler rejected all forms of modernism as "degenerate art", and the Nazi regime officially condemned Nolde's work. Until that time he had been held in great esteem in Germany. A total of 1,052 of his works were removed from museums, more than those of any other artist. Some were included in the "Entartete Kunst" exhibition of 1937, despite his protests, including (later) a personal appeal to Nazi "Gauleiter" Baldur von Schirach in Vienna. He was not allowed to paint—even in private—after 1941. Nevertheless, during this period he created hundreds of watercolors, which he hid. He called them the "Unpainted Pictures".