Necklace of Harmonia.

The Necklace of Harmonia (Ἁρμονία) (Harmonía), (also  known as the Necklace of Eriphyle (Ἐριφύλη) (Eriphúlē)). It was a precious ornament that brought misfortune to its owners in Greek myths and legends.

The Necklace of Harmonia was made by Hephaestus (Ἥφαιστος) (Hḗphaistos). It doomed all the descendants of his wife Aphrodite (Ἀφροδίτη) to misfortune.

This jewelry was given to Cadmus (Κάδμος) (Kádmos) by Europa (Εὐρώπη) (Eurṓpē). He then gave the necklace to Harmonia. Other goddesses owned it, too. Among them were: Semele (Σεμέλη) (Semélē), Eriphyle, Ino (Ἰνώ), Jocasta (Ἰοκάστη) (Iokástē), and Agave (Ἀγαύη) (Agaúē). 

Oedipus.

Oedipus was a king of Thebes. His parents were Laius and Jocasta.

Laius wanted to kill his son. But Oedipus was saved by a shepherd. King Polybus raised Oedipus.

Also, the character saved the city of Thebes from Sphinx. So, Oedipus became the king of Thebes.

His story had a tragic end in Greek mythology.

There are many paintings and statues about Oedipus.

Source of image:

https://www.shutterstock.com/es/image-illustration/oedipus-sphinx-by-gustave-moreau-1864-747216574


Source of image:

https://www.shutterstock.com/es/image-vector/death-laius-vintage-illustration-1444805831



Source of image:

https://www.shutterstock.com/es/image-vector/oedipus-sphinx-riddle-greek-mythology-tale-1518898913