Dario Brando is Dio's abusive and alcoholic father. One day, Dario notices a carriage accident and tries to steal from the corpses inside. There he met George Joestar, who thought that Dario had come to save him instead, at which point George made a debt to Dario for saving his life. He beat Dio and worked his wife to death. Dio then went to Ogre Street and bought oriental poison from a Chinese man named Wang Chan. On his death bed, he then had Dio go to the Joestar Estate to repay the debt.