5. Anna Zwanziger

https://murderpedia.org/female.Z/z/zwanziger-anna.htm
https://www.geschichte-verbrechen.de/zwanziger/zwanziger.html
http://www.executedtoday.com/2015/09/17/1811-anna-maria-zwanziger-once-beautiful-exceedingly-beautiful/
http://cbw.iath.virginia.edu/women_display.php?id=11672
https://books.google.ca/books?id=pk6Bo68G4OkC&lpg=PA653&ots=X7Wlj_QXdj&dq=Anna%20Zwanziger&pg=PA653#v=onepage&q=Anna%20Zwanziger&f=false
https://books.google.ca/books?id=scjknQEACAAJ&dq=Anna+Zwanziger&hl=en&sa=X&ved=0ahUKEwiF-a2z8uLkAhVMnKwKHfrnCBEQ6AEIOTAC

4. Locusta

https://books.google.ca/books?id=Wuf-CQH1jkMC&pg=PA144&dq=Locusta&hl=en&sa=X&ved=0ahUKEwimvpLi8uLkAhUGCawKHes2AMMQ6AEIUzAH#v=onepage&q=Locusta&f=false
https://www.indiatoday.in/fyi/story/worlds-first-serial-killer-raped-to-death-by-giraffe-as-punishment-326322-2016-05-30
https://www.britannica.com/biography/Locusta-Roman-murderer
https://gizmodo.com/badass-historical-chemists-locusta-1734516314

3. Hélène Jégado

http://www.psycho-criminologie.com/helene-jegado-l-empoisonneuse-a-l-arsenic.html
https://www.20minutes.fr/societe/2606447-20190918-bretagne-pourquoi-serial-killeuse-helene-jegado-continue-fasciner
https://archives.morbihan.fr/voyagez-dans-le-temps/helene-jegado-une-cuisiniere-presque-au-dessus-de-tout-soupcon/
https://books.google.ca/books?id=wqkMAAAAYAAJ&pg=RA4-PA3&dq=H%C3%A9l%C3%A8ne+J%C3%A9gado&hl=en&sa=X&ved=0ahUKEwiRzeme8-LkAhUIZKwKHeCoB0cQ6AEIODAC#v=onepage&q=H%C3%A9l%C3%A8ne%20J%C3%A9gado&f=false
https://books.google.ca/books?id=0YzFAwAAQBAJ&pg=PT153&dq=H%C3%A9l%C3%A8ne+J%C3%A9gado&hl=en&sa=X&ved=0ahUKEwiRzeme8-LkAhUIZKwKHeCoB0cQ6AEIVjAG#v=onepage&q=H%C3%A9l%C3%A8ne%20J%C3%A9gado&f=false

2. Catalina de los Ríos y Lisperguer

http://www.memoriachilena.gob.cl/602/w3-article-97333.html
http://unknownmisandry.blogspot.com/2011/09/catalina-de-los-rios-y-lisperguer.html
http://www.allsantiago.com/the-historic-quarter/around-iglesia-de-san-agustin/the-story-of-la-quintrala/
https://www.guioteca.com/fenomenos-paranormales/la-quintrala-la-escalofriante-historia-de-la-primera-y-malevola-bruja-chilena/

1. Elizabeth Bathory

https://books.google.ca/books?id=SIvYYr4xvJ4C&printsec=frontcover&dq=elizabeth+bathory&hl=en&sa=X&ved=0ahUKEwiRjMTu8-LkAhUND60KHQ5SBswQ6AEIKjAA#v=onepage&q=elizabeth%20bathory&f=false
https://books.google.ca/books?id=Ke4xMQAACAAJ&dq=elizabeth+bathory&hl=en&sa=X&ved=0ahUKEwiRjMTu8-LkAhUND60KHQ5SBswQ6AEIMTAB
https://books.google.ca/books?id=l3wDMQAACAAJ&dq=elizabeth+bathory&hl=en&sa=X&ved=0ahUKEwiRjMTu8-LkAhUND60KHQ5SBswQ6AEIODAC
https://books.google.ca/books?id=hukWMQAACAAJ&dq=elizabeth+bathory&hl=en&sa=X&ved=0ahUKEwiRjMTu8-LkAhUND60KHQ5SBswQ6AEIPTAD
https://books.google.ca/books?id=xfd7QgAACAAJ&dq=elizabeth+bathory&hl=en&sa=X&ved=0ahUKEwiRjMTu8-LkAhUND60KHQ5SBswQ6AEIQzAE
https://books.google.ca/books?id=5FliDwAAQBAJ&printsec=frontcover&dq=elizabeth+bathory&hl=en&sa=X&ved=0ahUKEwiRjMTu8-LkAhUND60KHQ5SBswQ6AEISDAF#v=onepage&q&f=false
https://www.historytoday.com/archive/months-past/death-countess-elizabeth-bathory
https://www.britannica.com/biography/Elizabeth-Bathory
https://www.history.com/this-day-in-history/bathorys-torturous-escapades-are-exposed