Claudia was five at the time of her mothers death when she was found by a vampire named Louis. Louis, famished from refusing to kill humans, impulsively feeds from her. He leaves in disgust, but not before the vampire Lestat finds her and turns her into a vampire.
After years of her unchanging self, she begins to loathe her makers, but eventually her love for Louis returns as her hate for Lestat grew. She attempted to kill Lestat, forcing Louis to leave him and the pair to travel to Europe to find "their kind."
They do find vampires in Paris, but after they discover the plot to kill Lestat, Claudia is put to death in a light chamber.