The Praetorian guards were a force of bodyguards used by Roman emporers early on in the Roman Empire. Praetorians were not very good at they're job as they managed to kill off more emporers themselfs than they managed to protect, until one day an emporer, Constantine I, got the brilliant idea of disbanding the guard before they assassinated him too.
1: "how are we going to assassinate the emporer"
2: "don't worry his Praetorian Guard's have already done him in"
An elite force of bodyguards used by Roman emperors.
Augustus created the Praetorian Guard in 27 BCE.