Bacchus

God of wine and grape harvest, he's the lord of unrestrained pleasure and of the primordial gneerative forces. In Achaia, he's known as Dionysus. Since our people is closely linked to the earth, Bacchus is a very beloved god, but, in truth, the relationship between this god and the Roman civilization has been difficult in the past. The inebriation that Bacchus gives men through his wine unleashes too much freedom, too much chaos. Thus, in the sixth century AUC it was decided that his festivals, the Bacchanalia, would be forbidden. These are wild and orgiastic rituals, to which the severe Roman civilization was not accustomed. After this resolution, order returned, but together with chaos creativity also disappeared: the arts withered, and no new initiative lit up the path of the Roman people. The augurs consulted the gods, and understood that the estrangement from Bacchus' free spirit was plunging Roman society into a gray indolence. The Bacchanalia were therefore restored, even if under the strict control of the College of Pontiffs, and Rome reprised its confident journey toward glory. Bacchus is portrayed as a youth crowned with vine leaves, sometimes holding a cup of wine in his hand.

"Strictly controlled" only goes as far as the College's control extends. You won't be surprised to hear there's a lot of people who find themselves travelling through the countryside just in time for a Bacchanal. Purely by happenstance. What a strange coincidence.
-Merius