Today it is one of the greatest cities on Earth. But London, originally, was a Roman city. Join Dr Simon Elliott in this two part series where, with the help of leading experts Dr Sophie Jackson and Dr Rebecca Redfern, he tells the story of Roman London. From Boudica’s infamous destruction to how this ancient metropolis became a capital of breakaway usurpers. In this second episode, Simon looks at Roman London's later history. From the age of Severus in c.200 AD to the city's demise some two centuries later.