What is the setting of Thyestes; Phaedra; the Trojan Women; Oedipus with Octavia by Seneca?

The setting of all of these plays is ancient Greece. This alters the plays because it includes an ancient set of Greek laws, as well as a religion focused on the Greek gods which is modernly viewed as Greek mythology. War and violence is prevalent in all of the plays due to the location and time period. This can be seen in the many betrayals and murders that occur in each of the plays.