What emperor ended the roman peace?

Answer 1

The Roman Peace, or Pax Romana, effectively ended with the reign of Emperor Marcus Aurelius, who ruled from 161 to 180 AD. His death marked the beginning of a series of conflicts and instability known as the Crisis of the Third Century, as the empire faced internal strife, economic troubles, and external invasions. While some argue that the decline began earlier, Marcus Aurelius is often seen as the last of the "Five Good Emperors," after which the empire struggled significantly.