Caelum is the god of light and good, and one of the rulers of heaven. He, unlike other gods, did not believe all humans were evil, and secretly married a human, Lucia Belmont. After the gods learned of this, war broke out, and Caelum escorted Lucia and her son away to a village. Caelum fought against the angered gods, but was killed. One of his human friends was an ancestor of Rinaldo Gandolfi, and Caelum gave him the ingredients for the Alchemy Whip, which would later become the Vampire Killer Whip. The ingredients would not be used until the late 1000s.