Did Hades the god of the underworld have children?

Answer 1

Yes. His four children were with his wife/Niece Persephone

Daughter Macaria, Goddess of Death

Daughter Melinoe, Goddess of Propitation-Offerings

Son Zagreus

Son Plutus, God of Wealth

Answer 2

Yes, Hades, as the god of the underworld in Greek mythology, had children. He is most commonly known to have fathered the Keres, who were female death spirits, with his wife Persephone.