Identify these men who might have been third if things had gone  just a little differently.  
Augustus was the first emperor of Rome. Tiberius was second.  Identify these men who might have been third if things had gone  just a little differently.  5 pts: The subject of a tragedy by Ben Jonson, this leader of the  Praetorian Guards was executed after his plot to overthrow Tiberius  was exposed at the last minute.
Augustus was the first emperor of Rome. Tiberius was second.  
Lucius Aelius {Sejanus}