For reference: the baths in the city were destroyed exactly a hundred years later, in 375 CE. So odds are that the fort was mildly effective to keep the barbarians out.
And by “barbarians” I mean likely Franks. In the long term… well.
This is a map of the Franconian dialects. I edited it to show Aquae Granni / Aachen, right in the middle. “Franconian”, “Frankish”, you should get the picture.
For reference: the baths in the city were destroyed exactly a hundred years later, in 375 CE. So odds are that the fort was mildly effective to keep the barbarians out.
And by “barbarians” I mean likely Franks. In the long term… well.
![](https://mander.xyz/pictrs/image/0de4f307-46d6-4666-89d3-3f29e9fa5a69.png)
This is a map of the Franconian dialects. I edited it to show Aquae Granni / Aachen, right in the middle. “Franconian”, “Frankish”, you should get the picture.
If something works for more than a lifetime, I wouldn’t call it mildly effective.