Year of the Four Emperors
The conspiracy of Gaius Calpurnius Piso in AD 65 was a in the reign of the Roman emperor Nero (reign 54–68). The plot reflected the growing discontent among the ruling class of the Roman state with Nero's increasingly despotic leadership, and as a result is a significant event on the road toward his eventual suicide and the chaos of the Year of the Four Emperors which followed.