Bleda vs Sima Ying

Upon the death of their uncle Rugila, Bleda and his brother Attila became joint rulers of the Hunnic Empire. This co-rulership marked the beginning of a period of aggressive expansion and diplomatic pressure on the Roman Empire.

Bleda and Attila negotiated the Treaty of Margus with the Eastern Roman Empire, securing a tribute of 700 pounds of gold per year and the return of Hun refugees. This treaty demonstrated Hun military leverage and established a pattern of Roman payments.

Bleda and Attila launched a major campaign against the Eastern Roman Empire, sacking cities along the Danube frontier. This aggression forced the Romans to increase their tribute payments and cede territory, expanding Hun control in the Balkans.

Bleda was killed, likely on the orders of his brother Attila, during a hunting expedition. This assassination ended the co-rulership and left Attila as the sole ruler of the Huns, enabling his later campaigns against the Roman Empire.

Sima Ying, Prince of Chengdu, was named crown prince by the usurper Sima Lun. This elevated his status and made him a key player in the War of Eight Princes, as he commanded a powerful army in the north.

Sima Ying defeated the forces of Sima Yue at Yecheng, securing control over the central plains. This victory made him the most powerful prince in the empire, but his harsh rule alienated allies and led to further conflict.

Sima Yue launched a campaign against Sima Ying, defeating him at Luoyang. Sima Ying was captured and executed, ending his role in the civil war. His death marked the final phase of the War of Eight Princes.