Creepy lady, how did I not know of you?

So I was watching a History Channel special on the folklore behind vampires and they talked about Elizabeth Báthory who was apparently one of the most prolific serial killers, and who I had never heard of. It seems as if this lady would lure in young peasant girls, torture, and drain them of there blood. What would she do with this blood you ask? Why bath in it, drink it, and use it to wash her face of course! And because of her social status it was years before she could be stopped. The special she it was thought that she killed somewhere around 600 to 700 girls, yikes!! Apparently the verdict is still out on whether she did this for vanity reasons(something about the blood making her skin look younger) or if she was just violent for the sake of being violent. One thing is for she, this lady had quite the blood lust!