Anthemius vs Artabanus IV of Parthia

The Eastern Roman Emperor Leo I appointed Anthemius as Western Roman Emperor, sending him to Italy with military support. Anthemius was a capable general and administrator, and his elevation was intended to restore stability to the Western Empire.

Anthemius, in cooperation with the Eastern Emperor Leo I, launched a massive joint naval expedition against the Vandal Kingdom in North Africa. The campaign ended in a disastrous defeat at the Battle of Cape Bon, draining the resources of both empires.

After a prolonged conflict with his magister militum Ricimer, Anthemius was besieged in Rome. Ricimer's forces captured the city, and Anthemius was captured and executed. His death marked the end of the last serious attempt to revive the Western Empire.

Artabanus IV fought a civil war against his brother Vologases VI for control of the Parthian throne. The conflict weakened the Parthian Empire, dividing its resources and military strength at a critical time.

Roman Emperor Caracalla invaded Parthia, seeking a pretext for war by demanding the hand of Artabanus IV's daughter in marriage. Artabanus refused, and Caracalla attacked, devastating parts of Media and Adiabene.

Artabanus IV was defeated and killed in battle by Ardashir I, the founder of the Sassanid Empire. This battle ended the Parthian Empire and marked the beginning of Sassanid rule over Persia.

With the death of Artabanus IV, the Parthian Empire, which had ruled Persia for nearly 500 years, came to an end. The Sassanid Empire under Ardashir I replaced it, ushering in a new era of Persian history.