How many of the Roman emperors assassinated?

Approximately 20 Roman emperors are known to have been assassinated or met their deaths through conspiracies and violent means. Notable examples include Julius Caesar, who was stabbed by a group of senators, and Caligula, who was murdered by his own guards. The political climate of ancient Rome was often tumultuous, leading to power struggles and violent outcomes for many leaders. Overall, assassination was a common method of removing emperors during this period.