Basel-Münsterhügel

[1] The fort was abandoned or destroyed shortly after its construction, before the end of the 1st century BC, with the Roman conquest of the Alps and the establishment of the province of Gallia Belgica.

In the mid-3rd century, the ruined oppidum was rebuilt as a Roman castrum, fortified with an encircling wall in c. 270.

The vicus was abandoned, and the hill served as part of the Roman fortifications of the Rhine against the advancing Alamanni throughout the 4th century.

The castle was abandoned after the death of Flavius Aetius in 454 and was probably once again in ruins by the 6th century, when the Alamannic settlement was established that would grow into the medieval city of Basel.

There is an older undefended La Tène site at Basel Gasfabrik, not far from the oppidum, which was abandoned after the fort was completed.