During the II World War, the castle was home of the Grafeneck Euthanasia Centre  (German: NS-Tötungsanstalt Grafeneck), one of the main Nazi Germany's killing centres part of their Action T4 programme.
During World War II, the castle was the Grafeneck Euthanasia Centre (German: NS-Tötungsanstalt Grafeneck), one of the major Nazi Germany's killing centers within their Action T4 program.