Hi Jang,
> encounter roman patrols instead of robbers. Would it have been historically right
In 12 B.C. (the year of Teudogar's plot), no. In this year the Roman invasion had only just begun, and the Romans still hadn't conquered any tribal areas. Sure, they'd just devastated and depopulated the Usipians' land on the Germanic side of the Rhine river. But this was a brief expedition, not yet a conquest. That'd only follow when all neighboring tribes were defeated; after all, what point would there be to occupying (and defending) a wasted, depopulated area as long as there were combat-ready enemy tribes nearby?
So from a Roman point of view, since there was no territory to defend or peace to keep, it didn't make sense to waste any soldiers by having small troops patrol anywhere, always risking to get ambushed. Only exceptions would be spies and scouts (who'd go hiding when they'd see you approaching) (and who'd mostly be natives, anyway), and, rarely, envoys or delegations on their way to allied tribes (these wouldn't be looking for a fight, either).
(This strategy changed marginally several years later, when all Germanic tribes had been sufficiently weakened to allow a permanent Roman presence on the Germanic side of the Rhine. But even then the Romans mostly relied on their local allies, and confined themselves to heavily fortified camps set up at strategic locations, where their presence would deter not-yet-defeated tribes from attacking Roman allies or tribes that had surrendered. The general Roman approach still was not to waste their own men on occupying territory; regarding hostile tribes, it was much better to fight a few large, decisive battle, kill most enemies and civilians, give the depopulated land to an allied tribe, and defend this ally from retaliatory attacks from other tribes by the simple presence of a legion in a camp. Only around a decade later, when all tribes had been defeated and had formally surrendered, and the area was declared a province, only then would the Romans actually put lots of troops and personnel on the ground. That'd be the period Teudogar II would be set it.)
> Teudogar II:
It'd be a sequel and would probably form the 2nd part of a 3-part-series (1-Alliance with Rome, 2-Roman Rule, 3-Rebellion against Rome), due to the timespan covered by the historical events.
There was a fairly long 'Teudogar 2'-thread about this in this forum; I just noticed this somehow got deleted (perhaps during manual spam-removal), so I restored it from what I had archived:
http://rpgcodex.com/phpBB/viewtopic.php?p=271659.