Imperator

[Captain Trek]

One of my generals was awarded a triumph once, but I returned him to Rome and nothing happened...

Basically what happened was that he was a fresh family member with more of an affinity for politics and governance than combat, but none-the-less I sent him and a small force to dispatch a rebel army outside of Rome (since the only other generals in range were attuned governors and I didn't want to risk them losing that trait)...

He won dispite being out-numbered and was declared 'imperator' by his army (which were by now just a rabble a few dozen men who had survived the battle with the rebel army (I only sent in four units to begin with, including the general)) and was, at the same time, awarded a triumph (the in-game description described it as a 'minor triumph' but none-the-less reccomended my general return to Rome for the celebrations...

Well he did, and nothing happened, so I sent him to govern a settlement... After reading up on triumphs I sent him back to Rome and this time stopped there for a few more seasons, but still nothing happened...

So I ask, do I HAVE to conquer a settlement to get the triumph celebrations? If not, what else am I doing wrong?