Proclaimed to have killed “no fewer than 600 men” in 1600s Southern Italy, Guilia Tofana is considered both a sinner and a saint…depending who you ask
Links:
https://www.goodreads.com/book/show/65094452-dark-waters
https://aspectsofhistory.com/giulia-tofana-power-poison/
https://www.historiamag.com/giulia-tofana-poisoner-murderer-saviour/