Winchester Castle Winchester Castle Winchester Castle is a medieval building in Hampshire, England. It was founded in 1067. Only the Great Hall still stands; it houses a museum of the history of Winchester. Around AD70 the Romans constructed a massive earth rampart long and wide. On top of this they built a fort to protect the city of Venta Belgarum. This site was chosen by William the Conqueror as the site of one of the first Norman castles in England. The castle was built in 1067 and for over one hundred years it was the seat of Government of the Norman Kings.
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