Countess Elizabeth Bathory

Also known as 'The Blood Countess,' this ghoulish woman had a thirst for the blood of young, beautiful females. A vain, capricious lady, she abused her power by killing countless young women after luring them into her castle, and often even forcing them to lick the blood of her other victims off of her nude body! 

She was also infamous for bathing in their blood, thinking it would keep her skin youthful and radiant. Her husband, Ferenc Nadasdy, also aided her in many of her crimes, even presenting her the castle in which she brutalized her victims as a wedding gift! She became notorious over the years as a real-life vampire due to her obsession with blood.