Seneca’s Oedipus is the only surviving Roman tragedy on the myth of Oedipus. The exact dating of Seneca’s tragedies remains a much vexed question; however, it is very likely that the Oedipus together with the Agamnenon and the Phaedra belong to the poet’s early production. The play has received so far little attention compared with the rest of Seneca’s tragedies, possibly because of its common subject with Sophocle’s Oedipus Tyrannus and the emblematic role of the Sophoclean play in the study of classical drama, as this was established by Aristotle in his Poetics. The older claim for the direct derivation of Seneca’s Oedipus from Sophocles’ …
Michalopoulos, Charilaos N.. "Oedipus". The Literary Encyclopedia. First published 08 May 2010; last revised 30 November -1.
[http://www.litencyc.com/php/sworks.php?rec=true&UID=13466, accessed 21 April 2015.]