The child of Laius and Jocasta was Oedipus. His parents ruled thebes. Laius was so excited for the future, that he went on a journey to go find the oracle. When he found the Oracle he got the worst possible news. It was that his new born would grow up to kill his father and marry his mother.
Oedipus was brought to the slopes of Mt. Cithaeron and was left their to die. But the herdsman man who took the baby up their felt bad so he gave the baby to another herdsman who brought the baby to his master
One night a drunken man shouted that Oedipus has no clue who his father is. After that Oedipus couldn't stop thinking about what the man said. So he went to the oracle and asked her who his parents are. She did not tell him but she did tell him that he would marry his mother and kill his father