Lady Carmilla Sanguina was a vampire who used her victims’ blood for bathing, in the hopes that it would help her stay young and beautiful (FW).
Carmilla is an alias used by Mircalla, Countess Karnstein, the vampire in Joseph Sheridan Le Fanu's Gothic novella Carmilla.
Sanguina = Latin, sanguineus "of blood," also "bloody, bloodthirsty."
196 years is a long time to live - even for witches and wizards. Vampires are generally understood to be functionally immortal, so it can be inferred that Lady Carmilla Sanguina's time as a vampire is counts as part of her life and that her death occurs when her vampire self is destroyed. -BB