A site in Gloucestershire, southwest England, where the Romano-British Corinium, the capital of the Dobuni tribe, was located. At the junction of important Roman and British routes, a cavalry fort was erected during 43-70 AD and by the 3rd century the town walls enclosed c100 hectares. Remains within those walls include an amphitheater and many rich villas. Occupation continued well into the Anglo-Saxon period. Excavations have revealed much of the layout of the town and the plan of the forum and basilica, a market hall, shops and houses. Cemetery finds have shown that the skeletons contained high levels of lead, supporting the view that lead poisoning contributed to the decline of the Roman Empire. The town was the largest in Roman Britain after London and was probably a capital in the 4th century. The Corinium Museum houses a Roman collection. Saxons captured the town in 577, and it later became a royal demesne (dominion or territory).