Maxima Caesariensis was the name of one of the four provinces of later Roman Britain (but is not named in the surviving copies of the Verona List, dated 312-314 AD). Roman Britain refers to those parts of the island of Great Britain controlled by the Roman Empire between AD 43 and 410 The Laterculus Veronensis or Verona List is a list of Roman provinces from the times of the Roman emperors Diocletian and Constantine Events By Place Roman Empire October 28 — Battle of Milvian Bridge: Constantine I defeats Maxentius and Events By Place Roman Empire 8 October — War between Constantine I and Licinius: Licinius is defeated at the Its capital was Londinium and probably encompassed what is now south east England. This article covers the history of London during the Roman period from around 47 AD when the Roman city of Londinium was founded England is a Country which is part of the United Kingdom. Its inhabitants account for more than 83% of the total UK population whilst its mainland Originally, its governors were of equestrian rank but by the mid fourth century they had to be of consular rank. Consul (abbrev cos; Latin plural consules) was the highest elected office of the Roman Republic and an appointive office under the Empire Maxima Caesariensis and its northern neighbour, Flavia Caesariensis, may have briefly comprised a single province which covered most of what is now eastern England. Flavia Caesariensis was one of the provinces of Roman Britain. Eric Birley and others have suggested that the two provinces named Caesariensis were descended from a larger unit which received its unusual name due to Imperial favour. After London welcomed Constantius Chlorus in 296 Birley argues that he may have granted it the additional title of 'Caesariensis'. Flavius Valerius Constantius ( March 31 c 250&ndash July 25 306) was an emperor of the Western Roman Empire (305&ndash306 Events By Place Roman Empire Galerius is defeated in combat by the Persians under Narseh outside Ctesiphon Given the circumstances at the time Constantius may well have divided the military command of Britannia Superior in two with an eastern province named Britannia Caesariensis and a western one named Britannia Prima. Britannia Superior was one of the provinces of Roman Britain created around 197 AD by the Roman Emperor Septimus Severus immediately after winning a Civil War against Britannia Prima was one of the provinces of Roman Britain in existence by c This division would have been later reorganised by splitting Britannia Caesariensis into north and south regions named after Constantius and the western Augustus, Marcus Aurelius Valerius Maximianus. Marcus Aurelius Valerius Maximianus Herculius (c 250 &ndash c This would require the split to have taken place prior to Maximian's abdication in 305. As Constantius was elevated to the title of Augustus in the same year, London may also have adopted the title at the same time, as indeed it was later known. The short period of it holding the title Caesariensis may explain why there is little other evidence of that name. An alternative explanation, that the province was named after Galerius Maximianus, emperor of the east, would have to account for an eastern emperor's being honoured, while the two Augusti of the Tetrachy were not. Galerius Maximianus ( ca. 260&ndashlate April or early May 311 formally Gaius Galerius Valerius Maximianus was Roman Emperor from 305 to 311 Tetrarchy ( Greek: "leadership of four " can be applied to any system of government where power is divided between four individuals