Venta Belgarum 144 acres (58 ha), making it among the largest towns in Roman Britain by surface area. The city had many fine Roman town houses or "domus", as well as public buildings and Roman temples. Like many other Roman towns however, Winchester began to decline in the later fourth century. The forum-basilica appears to have included a temple to Jupiter, Juno and Minerva along with an accompanying Jupiter Column. Elsewhere, there was a Romano-British style temple dedicated to the Celtic horse goddess, Epona. There was a large Romano-British cemetery to the north of the town, at Lankhills, and another to the
Venta Silurum to the emerging Kingdom of Gwent (called initially "Kingdom of Guenta"), and the town itself became known as "Caer-went" or "the castra/fort of Venta/Gwent". Tradition holds that Caradog Freichfras of Gwent moved his court from Caerwent to Portskewett around the 6th century. The town lacked substantial defences until the mid 4th century when stone town walls were built. A small garrison may have been based in the town during this period. Large sections of the defensive walls are still in place, rising up to 5 metres in height in places. The walls have been described as "easily the most impressive