This is a partial list of governors of Roman Britain from 43 to 409. As the unified province "Britannia", Roman Britain was a consular province, meaning that its governors had to first serve as a consul in Rome before they could govern it. While this rank could be obtained either as a suffect or ordinarius, a number of governors were consules ordinarii, and also appear in the List of Early Imperial Roman Consuls. After Roman Britain was divided, first into two (early 3rd century), then into four (293), later governors could be of the lower, equestrian rank.
Not all the governors are recorded by Roman historians and many listed here are derived from epigraphic evidence or from sources such as the Vindolanda letters. Beyond the recall of Gnaeus Julius Agricola in 85 the dates of service of those who can be named can only be inferred. Others are still entirely anonymous and by the time of the division of Britain into separate provinces, the record is very patchy.
Some sources list a further governor, a second Ulpius Marcellus. He was interpreted as a son of the first Ulpius Marcellus, serving. c. 211. This is based on a misdated inscription and it is now accepted that it refers to the earlier Ulpius Marcellus only.
The two sons of emperor Septimius Severus, Caracalla and Publius Septimius Geta, administered the province to some degree during and immediately after their father's campaigns there which took place between 208 and 211.
This list assumes the final division occurred c. 213.
Following the reabsorption of Britain into the Roman Empire, the island was further repartitioned by Diocletian, this time into four separate provinces, Maxima Caesariensis in the southeast, with its capital at London, Flavia Caesariensis in the east, with its capital at Lincoln, Britannia Secunda in the north, with its capital at York, and Britannia Prima in the west (including present day Wales), with its capital at Cirencester. A fifth province called Valentia also briefly existed, probably in the far north. Each had a governor of equestrian rank (a praeses) and they were overseen by a vicarius . Later in the 4th century, the governor of Maxima Caesariensis had to be of consular rank. The following names are the few which have survived from this era, covering the almost 100 years until c. 408, when the Roman civilian administration was expelled by the native population.[ citation needed ]
The gens Claudia, sometimes written Clodia, was one of the most prominent patrician houses at ancient Rome. The gens traced its origin to the earliest days of the Roman Republic. The first of the Claudii to obtain the consulship was Appius Claudius Sabinus Regillensis, in 495 BC, and from that time its members frequently held the highest offices of the state, both under the Republic and in imperial times.
The gens Julia was one of the most prominent patrician families in ancient Rome. Members of the gens attained the highest dignities of the state in the earliest times of the Republic. The first of the family to obtain the consulship was Gaius Julius Iulus in 489 BC. The gens is perhaps best known, however, for Gaius Julius Caesar, the dictator and grand uncle of the emperor Augustus, through whom the name was passed to the so-called Julio-Claudian dynasty of the first century AD. The nomen Julius became very common in imperial times, as the descendants of persons enrolled as citizens under the early emperors began to make their mark in history.
Pannonia Inferior, lit. Lower Pannonia, was a province of the Roman Empire. Its capital was Sirmium. It was one of the border provinces on the Danube. It was formed in the year 103 AD by Emperor Trajan who divided the former province of Pannonia into two parts: Pannonia Superior and Pannonia Inferior. The province included parts of present-day states of Hungary, Serbia, Croatia, and Bosnia and Herzegovina. The province was bordered to the east by a Sarmatian tribe—the Iazyges. Later, the Vandals appeared to the north-east.
The gens Pompeia was a plebeian family at ancient Rome, first appearing in history during the second century BC, and frequently occupying the highest offices of the Roman state from then until imperial times. The first of the Pompeii to obtain the consulship was Quintus Pompeius in 141 BC, but by far the most illustrious of the gens was Gnaeus Pompeius, surnamed Magnus, a distinguished general under the dictator Sulla, who became a member of the First Triumvirate, together with Caesar and Crassus. After the death of Crassus, the rivalry between Caesar and Pompeius led to the Civil War, one of the defining events of the final years of the Roman Republic.
Lycia and Pamphylia was the name of a province of the Roman empire, located in southern Anatolia. It was created by the emperor Vespasian, who merged Lycia and Pamphylia into a single administrative unit. In 43 AD, the emperor Claudius had annexed Lycia. Pamphylia had been a part of the province of Galatia.
The gens Titia was a plebeian family at ancient Rome. The gens is rarely mentioned in the Republican period, and did not rise out of obscurity till a very late time. None of its members obtained the consulship under the Republic, and the first person of the name who held this office was Marcus Titius in BC 31.
The gens Maria was a plebeian family of Rome. Its most celebrated member was Gaius Marius, one of the greatest generals of antiquity, and seven times consul.
The gens Nonia was a plebeian family at ancient Rome. Its members first appear in history toward the end of the Republic. The first of the Nonii to obtain the consulship was Lucius Nonius Asprenas in 36 BC. From then until the end of the fourth century, they regularly held the highest offices of the Roman state.
The gens Pescennia was a plebeian family at ancient Rome. Members of this gens are first mentioned in the time of Cicero, but it was not until imperial times that they came to prominence. The Pescennii were of equestrian rank. The most illustrious of the family was Gaius Pescennius Niger, an able general, who was proclaimed emperor in AD 193, only to be defeated and put to death by Septimius Severus the following year.
The gens Tannonia was an obscure plebeian family at ancient Rome. Few members of this gens are mentioned in Roman literature, but many are known from inscriptions.