Artabanus IV of Parthia, also known as Ardavan IV, was a significant figure in the history of the Parthian Empire, reigning from approximately two hundred thirteen to two hundred twenty-four. As the younger son of Vologases V, he ascended to power following the death of his father in two hundred eight, amidst a backdrop of familial rivalry and political strife.
In a bold move, Artabanus IV rebelled against his brother, Vologases VI, shortly after the latter's succession. This conflict allowed him to seize control over a substantial portion of the Parthian territories, although his brother retained authority over a diminished principality. His reign was marked by military prowess, notably when he successfully repelled an invasion by the Roman emperor Caracalla in two hundred seventeen, thereby safeguarding Parthian dominance in much of Mesopotamia.
However, Artabanus IV's rule faced significant challenges, particularly from local dynast Ardashir, who instigated a rebellion in Persis. The two forces clashed in April of two hundred twenty-four at the Battle of Hormozdgan, a pivotal encounter that would determine the fate of the Parthian Empire. Tragically, Artabanus IV was killed in this battle, leading to the defeat of his army and the subsequent fall of the Parthian Empire to Ardashir, who established the Sasanian dynasty over Iran.