Let me guess: she was one of many German/Austrian mentally-disabled, recovering alcoholics, people who had autism, special needs at-risk cognitively impaired patients who had prefrontal lobe lobotomies, were gassed in an exhaust van in an Holocaust trial-run as part of Hitler's T-4 euthenization program that officially ran from 1940-41 was "suspended" after a major sermon from an influential German Lutheran minister criticizing it, but "unofficially"--it kept on running semi-secretly until the end of WWII in 1945.
I've heard stories Hitler personally ordered her to be murdered to allay suspicions among possible enemies or rivals within the Nazi hierarchy like Himmler or Heydrich who he feared might use her mental illness as a subtle, covert way to erode Hitler's credibility as someone who wasnt exactly mentally stable or competent to run one of Europe's largest, industrialized economies, and militaries. I know for a fact that Hitler privately distrusted Reinhard Heydrich and was worried what exactly he mightve had on him after his assassination in Prague by British SOE-trained Czech assassins in Operation Anthropoid.