Artabanus IV of Parthia vs Atreus of Mycenae

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.

Atreus succeeded Eurystheus as king of Mycenae, establishing the Atreid dynasty. His reign marked the beginning of Mycenae's greatest period of power and influence in the Greek world.

Atreus and his brother Thyestes quarreled over the throne of Mycenae, with Thyestes seducing Atreus's wife and stealing the golden fleece that symbolized kingship. This feud led to a cycle of revenge.

Atreus, in revenge, killed Thyestes' sons and served them to their father at a banquet. This act of cannibalism cursed the House of Atreus and led to further tragedies.

Atreus was killed by Aegisthus, the surviving son of Thyestes, who had been raised in exile. Aegisthus then restored Thyestes to the throne, continuing the cycle of violence.