I know a lot about Greek Mythology and I know that Persephone had three known children: Makaria, Melinoe, and Zagreus.
Makaria or Macaria is known as the daughter of Hades and Persephone and goddess of blessed death. Her lover is Thanatos, god of death.
Melinoe is the daughter of Persephone and Zeus who laid with her in disguise as Hades. She is also the goddess of ghosts.
(This part is out of the question but figured you might need it)
There is also Zagreus, the son of Hades and Persephone but was soon changed to the son of Zeus with Persephone instead of Hades. Zeus favored the child, so he took him to Olympus. Hera disliked Zagreus and convinced the Titans to kill him, but he survived their attacks. He is the god of mysteries, hunting, and rebirth.
