Oedipus Rex and that deal with the story of Oedipus, "Oedipus Rex" was the second to be written. However, in terms of the chronology of events that the plays describe, it comes first, followed by "Oedipus at Colonus" and then "Antigone". Prior to the start of "Oedipus Rex", Oedipus has become the king of Thebes while unwittingly fulfilling a prophecy that he would kill his father, Laius (the previous king), and marry his mother, Jocasta (whom Oedipus took as his queen after solving the riddle of the Sphinx). The action of Sophocles' play concerns Oedipus' search for the murderer of Laius in
Tragedy time of the empire, the tragedies of two playwrights survive—one is an unknown author, while the other is the Stoic philosopher Seneca. Nine of Seneca's tragedies survive, all of which are "fabula crepidata" (tragedies adapted from Greek originals); his "Phaedra", for example, was based on Euripides' "Hippolytus". Historians do not know who wrote the only extant example of the "fabula praetexta" (tragedies based on Roman subjects), "Octavia", but in former times it was mistakenly attributed to Seneca due to his appearance as a character in the tragedy. Seneca's tragedies rework those of all three of the Athenian tragic playwrights whose