Andrea Hentschel

The facts are well-known — from 1933 the Nazis murdered more than 200 000 physically and mentally disabled people, including a cousin of Adolf Hitler believed to have been schizophrenic. But it has taken more than 60 years for an exhibition to trace in detail the fate of the first victims of Hitler’s sinister "health" policies, based on his obsession with racial purity that led to the Holocaust.