This was known as Sub-Roman Britain, with a Romano-British culture and the people may have used a Latin-based language. Roman legions left in 410 AD after almost four centuries, and the administration of the country was taken over by prominent local chieftains.

It seems that they have created also a sixth province -during Agricola conquest- in Caledonia, called Vespasiana. The Romans considered Britannia as a single territory and administratively they divided the huge island in five provinces: Britannia prima (capital London), Britannia secunda, Flavia Caesariensis, Maxima Caesariensis and Valentia. After the revolt of Boudica there was usually peace and a process of full 'romanization' started successfully in southeast Britain. The invasion was one of the most significant events in British history. The other three legions were also led by high-ranking men.

The II Augusta was commanded by the future emperor Vespasian. He was given four legions, totalling about 20,000 men, plus about the same number of helpers The legions were: In 43 AD, the Emperor Claudius sent an invasion force, led by Aulus Plautius, a distinguished senator. The full conquest of Britain was delayed for almost a century. Trouble in Gaul (mainly modern France & Belgium) prevented Caesar from staying in Britain.

Their capital was taken over by the Romans.

Roman fort viking conquest