Aphrodite was the exception to the Greek God family tree. Some say her parents were unknown, and that she was born of sea foam. Others, like the poet Homer, said she was a daughter of the mighty Zeus, king of all the gods.
Hercules was half man and half god. His mother was a mortal. But his father was a king - a very special king, the king of all the gods, the mighty Zeus. But Hercules did not know he was part god until he had grown into a man.