Question: is there a difference between oedipus rex and oedipus the king?
Answer: Oedipus Rex, also known by its Greek title, Oedipus Tyrannus (Ancient Greek: Οἰδίπους Τύραννος, pronounced [oidípoːs týrannos]), or Oedipus the King, is an Athenian tragedy by Sophocles that was first performed around 429 BC. ... Oedipus Rex is regarded by many scholars as the masterpiece of ancient Greek tragedy.