Pisonian conspiracy
The Pisonian conspiracy was a plot to assassinate the Roman Emperor Nero in AD 65, led by Gaius Calpurnius Piso. Piso was a prominent senator and nobleman who was dissatisfied with Nero's leadership and wanted to overthrow him. The conspiracy involved a number of other high-ranking individuals, including members of the Roman Senate, and was intended to take place during a public performance of the emperor's musical compositions.