When was Ernst Küppers born?

He committed suicide by shooting himself through the heart with a pistol, on 15th June 1938. He was 56 years old when he died- he was driven to kill himself following years of persecution by the Nazis, who labelled him a 'degenerate artist' and sold or destroyed over 600 of his pictures. The last years of his life were spent in Davos, in Switzerland.