Lilith
The oldest child of Vlad Dracula, Lilith and her mother were abandoned by Dracula when he took power. After her mother committed suicide, Lilith was adopted and raised by gypsies. Years later, the now-vampiric Dracula attacked Lilith's gypsy camp. Enraged, the surviving gypsies cast a spell that changed Lilith into a vampire, but without the traditional weaknesses from sunlight or holy objects. Lilith was to now cursed to stalk Dracula forever, being reborn into a new body each time she dies, until Dracula is finally destroyed.
Since then, Lilith and her father have had an erratic feud over the years. At times Lilith has been content to enter a peaceful truce with Dracula, at other times she has killed scores of innocent people to strike at him.