Anneliese Michel

A girl named Anneliese Michel went through 67 Exorcisms, 1-2 per week lasting up to 4 hours. The exorcisms spanned over 10 months between 1975 and 76, at the end of which she died. Her autopsy revealed she had died of malnutrition/dehydration due to being in a semi-starvation state for almost a year while the rites of exorcism were performed.