Roman rule and Early History The area around the current city is believed to have been first settled by Brythonic people hundreds of years before the common era. The first notable settlement was founded in 43 AD by the Roman Empire. Despite early attempts from the local Celts to push the Romans out of the area, (most notably an attack led by Queen Boudica) the city flourished and was soon pronounced the seat of Roman authority on the island. After the end of Roman rule in Britain during the fifth century, southern Britain was fractured into many kingdoms. All remaining loyal Roman soldiers fell back to the trade center of Londinium, rallying behind the Constantine , who remained in Britain. In 411 AD with all communication lost between Rome and Britain Constantine became the first king of