Isca Dumnoniorum Isca Dumnoniorum Isca Dumnoniorum, also known simply as Isca, was a town in the Roman province of Britannia at the site of present-day Exeter in the English county of Devon in the United Kingdom. It served as the tribal capital of the Dumnonians under and after the Romans. The city walls of Exeter (some 70% of which survive) mark the former perimeter of Isca and excavations in the 1970s and 1980s verified that the town was home to a Roman fortress almost certainly for the Second Augustan Legion. The town seems to have grown up around this fort (established )
Isca Dumnoniorum the line between the Isca fortress and Topsham was excavated at the site on Topsham Road in 2010. Initial dating suggests that it was occupied at the same time as the Isca fortress, –75. The settlement () of Isca Dumnoniorum seems to have developed around the Roman fortress. It is one of the four cities () attributed to the Dumnonii by Claudius Ptolemy in his 2nd-century "Geography" and it served as the tribal capital () of the Dumnonii. It was also listed on the late-2nd century Antonine Itinerary, where it forms the southern terminus of route 15 () on the