Who were the married gods that had a god child?

They weren't married I don't think but Zeus and another goddess gave birth to Hercules. The person who was strong.

Little Story:- The God of the underworld didn't like Hercules so he sent a snake to kill him. Zeus had sent Hercules to a human family. When he was a baby the snake came but Hercules killed it with his bare hands.

*That happened in the Disney Version of Hercules*

In Greek Myths, Zeus had a baby with a mortal woman. She named the baby Hercules. Hera (Zeus's immortal wife) was angry that Zeus had baby with another woman, so she sent a snake after Hercules when he was a baby, which he strangled with his bare hands. Hades had nothing to do with Hercules in Greek Myths. Disney wanted to make the story more appropriate in stead of having Zeus cheat on his wife, so they made Hades the bad guy.