(Greek mythology) the god of the underworld in ancient mythology; brother of Zeus and husband of Persephone
"The definition provided does not match the word "aides," which refers to assistants rather than a mythological figure. However, assuming you intended the word Hades for this specific meaning, here is an example sentence: When Hades abducted Persephone from Mount Olympus, he transformed himself into her husband and became the ruler of the underworld."
plural of aide
"The campaign team relied heavily on their aides to manage schedules and coordinate volunteers during the election season."