Exeter is a cathedral city and the county town of Devon, South West England. It is situated on the River Exe, approximately 36 mi northeast of Plymouth and 65 mi southwest of Bristol. In Roman Britain, Exeter was established as the base of Legio II Augusta under the personal command of Vespasian. Exeter became a religious centre in the Middle Ages. Exeter Cathedral, founded in the mid 11th century, became Anglican in the 16th-century English Reformation.