 He then made a settlement with Narseh to give up his entitlement to the throne in return for the governorship of the important frontier province of Armenia, which was constantly the source of war between the Roman and Sasanian Empires.Narseh held the title of "Vazurg Šāh Arminān" ("Great King of Armenia"), which was used by the heir to the throne.Nevertheless, Narseh still most likely viewed Bahram I as a usurper.