The ruler of the underworld in Roman mythology is Pluto. He presides over the realm of the dead, holding dominion over deceased souls. Pluto is often associated with wealth and resources found underground, hence his connection to the precious metals and minerals of the earth. In mythology, he is portrayed as a stern figure who rarely allows souls to leave the underworld, and he is often associated with the famous myth of Persephone, whom he abducts to be his queen.