Lucius

Lucius is one of Caesar's most trusted men and leader of the praetorian guard.

Background
Lucius is the commander of the praetorian guard in Caesar's Legion. If Benny is captured by Caesar's Legion, it's he who tortures Benny to learn the purpose of the platinum chip.

Despite his age, Lucius has been able to maintain his position in the praetorian guard for thirteen years as no one has challenged him in a battle to the death to take his place. Caesar suspects this may be more out of his subordinates' respect for Lucius than a result of his strength.

Quests

 * I Hear You Knocking: Caesar has acquired a howitzer but the firing mechanism is broken. Lucius asks the Courier to befriend the Boomers and get the parts needed for a repair.
 * Et Tumor, Brute?: The Courier must report to Lucius during Caesar's coma and answer to him if Caesar dies.
 * Arizona Killer: If Caesar is dead, Lucius will order the Courier to assassinate President Kimball during his visit to Hoover Dam.
 * Veni, Vidi, Vici: If Caesar is dead, Lucius will order the Courier to report to Legate Lanius to begin the battle for Hoover Dam.
 * A Trusted Aide: After the Courier has achieved a reputation of "liked" or better, Lucius will give them the key to Caesar's Legion safehouse.

Other interactions

 * With an Unarmed skill of 50, Lucius can be asked to teach the praetorian unarmed technique, Legion Assault. However, he will not teach the Courier if they have a poor reputation with Caesar's Legion.
 * If the Courier has the required Unarmed skill but has low Intelligence, the dialogue option to learn Legion Assault will change into, "Can you teach me how to fight like the Pray-whatever?"

Appearances
Lucius appears only in Fallout: New Vegas.