Between 1973 and 1975 she was committed to a psychiatric
hospital where drugs did nothing to help her condition. Finally, her parents
gave up on hospital care, seeking only the help of Catholic exorcists Father Arnold
Renz and Pastor Ernst Alt.
Over a 10 month period, Annelise had gone through 67
exorcisms, as the exorcists tried to cast out the demons possessed her. When
asked, Annelise claimed that she was possessed by Hitler, Nero, Cain, Judas
Iscariot, and even Lucifer.
Anneliese at this time was refusing medical care, refusing
to eat, and talking about her death being a form of atonement for other
people’s sins.
On 1 July 1976, Anneliese died in her sleep. The autopsy report stated her cause of death as malnutrition and dehydration from almost a year of semi-starvation while the rites of exorcism were performed. She weighed 30.91 kilograms.