Which classic horror character killed Elizabeth Lavenza?

The story behind the answer

Frankenstein’s Monster is correct: in Mary Shelley’s novel, the creature murders Victor Frankenstein’s fiancée, Elizabeth Lavenza, on their wedding night. It’s revenge for Victor’s refusal to create a female companion after first promising to do so. The killing underscores the novel’s themes of responsibility, rejection, and the consequences of unchecked ambition.

Context tip to remember: Frankenstein is the scientist, not the monster; his creation targets those Victor loves—first friend Henry Clerval, then bride Elizabeth. Contrast with other classics: Dracula preys on Lucy and Mina, not Elizabeth; the Creature from the Black Lagoon is from a 1954 film; “werewolf” is a generic folklore figure.