Isca Dumnoniorum other discoveries at the city's Royal Albert Memorial Museum. 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
National Roman Legion Museum National Roman Legion Museum The National Roman Legion Museum () is a museum in Caerleon, near Newport, south-east Wales. It is one of three Roman sites in Caerleon, along with the Baths museum and the open-air ruins of the amphitheatre and barracks. It is part of the wider network of Amgueddfa Cymru – National Museum Wales. Roman Wales was the farthest point west that the Roman Empire in Roman Britain extended to, and as a defence point the fortress at Isca Augusta, now Caerleon, built in 75 AD, was one of only three permanent Roman Legionary fortresses in Roman Britain.