Eventually, in Ardashir's contest with Artabanus in the Battle of Hormozdgan on April 28, 224, Artabanus was killed by Ardashir and the Parthian dynasty was overthrown with his death. The year of the occurrence of the battle is confirmed by Shapur I's inscription in Bishapur. The extended report of the Battle of Hormozdgan is probably made for the Sasanian's formal history. If the mentioned assumption is right, the writing may have been the main source of Al-Tabari's History. After Artabanus's death, Ardashir's quest for extending his kingdom did not end. In a procedure, the large landlord Parthian houses, either submitted to Ardashir (willingly or unwillingly) or were conquered by him.