 At first, Ardashir I's activities did not alarm Artabanus IV, until later, when the Arsacid king finally chose to confront him.The location of the battle has not been found.The Arabic chronicle "Nihayat al-arab" states that the battle took place in "bʾdrjʾan" or "bʾdjʾn", which Widengren translated as "*Jurbadhijan" (Golpayegan).