Sudbrook, Monmouthshire the Silures from the 2nd century BC and occupied by the Romans from the 1st century AD until the 4th century. The hillfort was originally much bigger than now having been eroded over the centuries. Finds of Roman coins at Black Rock, Portskewett, show that the ferry crossing was in use in Roman times, on the route between the Roman stations of "Aquae Sulis" (Bath) and "Venta Silurum" (Caerwent). According to tradition, Caradog Freichfras, the Welsh ruler of Gwent in the 5th century or 6th century AD, moved his court from Caerwent to the Portskewett area, possibly to the fort.
Aquae Regiae Aquae Regiae Aquae Regiae was a Roman town in the Roman province of Byzacena, during the Roman Empire and into late antiquity. The Latin adjective referring to it is "Aquaregiensis". The bishop of this town, Massimiano, participated in the 411 Carthage conference, between the Catholic bishops and Donatist bishops of Africa and was at the other Carthaginian council of 419. Another bishop was among the Catholic prelates summoned in 484 to Carthage by the Arian king of the Vandals, Huneric. The bishop of the town was exiled after this conference. Today Aqua Regie survives as a titular bishopric of the