“The Blood Countess” was called the most prolific female serial killer of all time, but researchers have a new theory
More than 400 years after her death, the truth about “the Blood Countess,” a Hungarian noblewoman alleged to have been the most prolific female serial killer of all time, remains elusive. From her castle atop a rugged peak in what is today Čachtice in western Slovakia, Elizabeth Báthory was alleged to have tortured and killed…