Twelve Olympians
Though Circe's patron goddess Hecate was an offspring of the Titans, she was not considered one of the main Twelve Olympians. Zeus gave Hecate much respect, but she did not hold much favor with others on Olympus. As such, she married the god Hades, but their marriage did not last and Hecate was demoted as handmaiden to her former husband's new wife. Because of this, she left the realm of the gods and agreed to render her soul to her most devoted servant Circe. This caused Circe to attain her current goddess-level of power and immortality.