The document summarizes the history of the royal house of Thebes from its founding by Cadmus through the reign of Oedipus and his children. It describes how Cadmus founded Thebes after killing a dragon and sowing its teeth. His descendants experienced tragedy, including Oedipus unknowingly killing his father and marrying his mother. After the truth was revealed, Oedipus was exiled and his sons fought for the throne, continuing the family's misfortunes until the house was destroyed.