13. Ilse Koch
Koch was married to Karl Otto Koch, one of the Nazi figures, and it is more or less obvious from where she got all of those crazy ideas. However, some data even say that she was even crueler than her husband, being the reason why she got the nickname “Bitch of Buchenwald”. She had the weird habit of walking through the camps naked, and if any of the prisoners looked at her, she would order to kill them immediately. However, she eventually killed herself, and we will never find out whether she did it because of feeling guilty.
