Lucretia Tepeş was the third ruler of the Vampire Kingdom, and Mina Tepeş mother. Little is known about her other than that she bore a daughter and that she was killed at the hands of the Three Clans.
One fact is clear, she cared deeply for her daughter. If she hadn't, then she would not have instructed Veratos, one of the vampires she had personally turned, to protect Mina and aide her as ruler; thus giving Mina one of her most loyal and trusted advisers.
Lucretia seems to resemble Mina's true form, having long, presumably pale blonde hair, and slanted hollow eyes. She wears an outfit reminiscent of the renaissance era, presuming she lived around that time.