During the 4th century, the fort grew in importance because it commanded a bridge that lay along the road from Gaul to the Danube.
•
Emperors Constantius II and Julian assembled their armies at the Castrum Rauracense before marching to battle against the Alemanni.
The Landschaft Möhlinbach encompased the villages of Hellikon, Kaiseraugst, Magden, Möhlin, Mumpf, Olsberg, Wallbach, Wegenstetten, Zeiningen and Zuzgen.