Question: are hades and hecate related?
Answer: Hecate was a pre-Olympian Goddess of Heaven, Earth, and the Tartarus. Zeus, Poseidon, and Hades took over, but Zeus did not deny Hecate her old powers. Hecate played a minor role when Hades abducted Demeter's daughter Persephone. ... Hekate would therefore be Hades' first cousin once removed.