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.
Viridia (gens) that translates as "firm, strong, hardy", and "Tertulla", a diminutive of "Tertia", an old feminine praenomen, which was widely used as a surname throughout Roman history. Viridia (gens) The gens Viridia was an obscure plebeian family at ancient Rome. Members of this gens are known only from inscriptions, evidently dating to imperial times. The nomen "Viridius" seems to be derived from the Latin "viridis", green. Since one of the Viridii left a libationary inscription at Aquae Sulis in Britain, some connection with the obscure British deity Viridios has been suggested, but other Viridii are known from different parts of the