Dea Brando, known as Dea after becoming a vampire, is the main antagonist and rival to the Joestar Family, that began with her adoptive brother Jonathan Joestar. After becoming a Vampire and later a Stand user, Dea has gathered around her many minions and is responsible for many major events of the series, from the death of Jonathan Joestar to the Joestar Family's sudden acquisition of Stand power. She is the wielder of the immensely powerful 'The World'. Dea is the Mother of Giorno Giovanna as well as a handful of other illegitimate offspring.