- Roman conquest of Britain
:"This page refers to the conquest begun in AD 43. For other Roman invasions see
Caesar's invasions of Britainand Carausian Revolt."
By AD 43, the time of the main Roman invasion of Britain,
Great Britainhad already frequently been the target of invasions, planned and actual, by forces of the Roman Republicand Roman Empire. In common with other regions on the edge of the empire, Britain had enjoyed diplomatic and trading links with the Romans in the century since Julius Caesar's expeditions in 55 and 54 BC, and Roman economic and cultural influence was a significant part of the British late pre-Roman Iron Age, especially in the south.
Between 55 BC and the 40s AD, the status quo of tribute, hostages, and client states without direct military occupation, begun by
Caesar's invasions of Britain, largely remained intact. Augustusprepared invasions in 34 BC, 27 BC and 25 BC. The first and third were called off due to revolts elsewhere in the empire, the second because the Britons seemed ready to come to terms. [ Dio Cassius, "Roman History" [http://penelope.uchicago.edu/Thayer/E/Roman/Texts/Cassius_Dio/49*.html#38 49.38] , [http://penelope.uchicago.edu/Thayer/E/Roman/Texts/Cassius_Dio/53*.html#22 53.22] , [http://penelope.uchicago.edu/Thayer/E/Roman/Texts/Cassius_Dio/53*.html#25 53.25] ] According to Augustus's "Res Gestae", two British kings, Dumnovellaunusand Tincomarus, fled to Rome as suppliants during his reign, [ Augustus, " Res Gestae Divi Augusti" [http://penelope.uchicago.edu/Thayer/E/Roman/Texts/Augustus/Res_Gestae/6*.html#32 32] . The name of the second king is defaced, but Tincomarus is the most likely reconstruction.] and Strabo's "Geography", written during this period, says that Britain paid more in customs and duties than could be raised by taxation if the island were conquered. [ Strabo, "Geography" [http://penelope.uchicago.edu/Thayer/E/Roman/Texts/Strabo/4E*.html 4.5] ]
By the 40s AD, however, the political situation within Britain was apparently in foment. The
Catuvellaunihad displaced the Trinovantesas the most powerful kingdom in south-eastern Britain, taking over the former Trinovantian capital of Camulodunum( Colchester), and were pressing their neighbours the Atrebates, ruled by the descendants of Julius Caesar's former ally Commius. [John Creighton (2000), "Coins and power in Late Iron Age Britain", Cambridge University Press] Caligulaplanned a campaign against the British in 40, but its execution was bizarre: according to Suetonius, he drew up his troops in battle formation facing the English Channeland ordered them to attack the standing water. Afterwards, he had the troops gather sea shells, referring to them as "plunder from the ocean, due to the Capitol and the Palace". [ Suetonius, "Caligula" [http://penelope.uchicago.edu/Thayer/E/Roman/Texts/Suetonius/12Caesars/Caligula*.html#44 44-46] ; Dio Cassius, "Roman History" [http://penelope.uchicago.edu/Thayer/E/Roman/Texts/Cassius_Dio/59*.html#25 59.25] ] Modern historians are unsure if that was meant to be an ironic punishment for the soldiers' mutiny or due to Caligula's derangement. Certainly this invasion attempt readied the troops and facilities that would make Claudius' invasion possible 3 years later (e.g. a lighthouse was built by Caligula at Boulogne-sur-Mer, the model for the one built soon after 43 at Dubris).
Three years later, in 43, possibly by re-collecting Caligula's troops,
Claudiusmounted an invasion-force to re-instate Verica, an exiled king of the Atrebates. [Dio Cassius, "Roman History" [http://penelope.uchicago.edu/Thayer/E/Roman/Texts/Cassius_Dio/60*.html#19 60.19-22] ] Aulus Plautius, a distinguished senator, was given overall charge of four legions, totalling about 20,000 men, plus about the same number of auxiliaries. The legions were:
The "II Augusta" is known to have been commanded by the future emperor
Vespasian. Three other men of appropriate rank to command legions are known from the sources to have been involved in the invasion. Gnaeus Hosidius Geta, who probably led the "IX Hispana", and Vespasian's brother Titus Flavius Sabinus IIare mentioned by Dio Cassius(Dio says that Sabinus was Vespasian's lieutenant, but as Sabinus was the older brother and preceded Vespasian into public life, he could hardly have been a military tribune). Gnaeus Sentius Saturninusis mentioned by Eutropius, although as a former consul he may have been too senior, and perhaps accompanied Claudius later. [ Eutropius, "Abridgement of Roman History" [http://www.forumromanum.org/literature/eutropius/trans7.html#13 7:13] ]
Crossing and landing
The main invasion force under Aulus Plautius crossed in three divisions. The port of departure is usually taken to have been Boulogne, and the main landing at
Rutupiae( Richborough, on the east coast of Kent). Neither of these locations is certain. Dio does not mention the port of departure, and although Suetonius says that the secondary force under Claudius sailed from Boulogne, [Suetonius, "Claudius" [http://penelope.uchicago.edu/Thayer/E/Roman/Texts/Suetonius/12Caesars/Claudius*.html#17 17] ] it does not necessarily follow that the entire invasion force did. Richborough has a large natural harbour which would have been suitable, and archaeology shows Roman military occupation at about the right time. However, Dio says the Romans sailed east to west, and a journey from Boulogne to Richborough is south to north. Some historians [For example, John Manley, "AD43: a Reassessment".] suggest a sailing from Boulogne to the Solent, landing in the vicinity of Noviomagus ( Chichester) or Southampton, in territory formerly ruled by Verica. An alternative explanation might be a sailing from the mouth of the Rhineto Richborough, which would be east to west. [Strabo ("Geography" [http://penelope.uchicago.edu/Thayer/E/Roman/Texts/Strabo/4E*.html#5.2 4:5.2] ) names the Rhine as a commonly-used point of departure for crossings to Britain in the 1st century AD.]
British resistance was led by
Togodumnusand Caratacus, sons of the late king of the Catuvellauni, Cunobelinus. A substantial British force met the Romans at a river crossing thought to be near Rochester on the River Medway. The battle raged for two days. Hosidius Geta was almost captured, but recovered and turned the battle so decisively that he was awarded the " ornamenta triumphalia".
The British were pushed back to the Thames. The Romans pursued them across the river causing them to lose men in the marshes of
Essex. Whether the Romans made use of an existing bridge for this purpose or built a temporary one is uncertain. At least one division of auxiliary Batavian troops swam across the river as a separate force.
Togodumnus died shortly after the battle on the Thames. Plautius halted and sent word for Claudius to join him for the final push. Cassius Dio presents this as Plautius needing the emperor's assistance to defeat the resurgent British, who were determined to avenge Togodumnus. However, Claudius was no military man. Claudius's arch says he received the surrender of eleven kings without any loss,  and Suetonius says that Claudius received the surrender of the Britons without battle or bloodshed. [Suetonius, "Claudius" [http://penelope.uchicago.edu/Thayer/E/Roman/Texts/Suetonius/12Caesars/Claudius*.html#17 17] ] It is likely that the Catuvellauni were already as good as beaten, allowing the emperor to appear as conqueror on the final march on Camulodunum. Cassius Dio relates that he brought
war elephants, although no remains of them have been discovered in Britain, and heavy armaments which would have overawed any remaining native resistance. Eleven tribes of South East Britain surrendered to Claudius and the Romans prepared to move further west and north. The Romans established their new capital at Camulodunum and Claudius returned to Rome to celebrate his victory. Caratacus escaped and would continue the resistance further west.
Vespasiantook a force westwards subduing tribes and capturing "oppida" as he went, going at least as far as Exeterand probably reaching Bodmin. [Suetonius, "Vespasian" [http://penelope.uchicago.edu/Thayer/E/Roman/Texts/Suetonius/12Caesars/Vespasian*.html#4 4] ] The Ninth Legionwas sent north towards Lincoln and within four years of the invasion it is likely that an area south of a line from the Humberto the SevernEstuary was under Roman control. That this line is followed by the Roman road of the Fosse Wayhas led many historians to debate the route's role as a convenient frontier during the early occupation. It is more likely that the border between Roman and Iron Age Britain was less direct and more mutable during this period however.
Late in 47 the new governor of Britain,
Ostorius Scapulabegan a campaign against the tribes of modern day Wales, and the Cheshire Gap. The Siluresof south east Wales caused considerable problems to Ostorius and fiercely defended the Welsh border country. Caratacus himself was defeated in one encounter and fled to the Roman client tribe of the Brigantes who occupied the Pennines. Their queen, Cartimanduawas unable or unwilling to protect him however given her own truce with the Romans and handed him over to the invaders. Ostorius died and was replaced by Aulus Galluswho brought the Welsh borders under control but did not move further north or west, probably because Claudius was keen to avoid what he considered a difficult and drawn-out war for little material gain in the mountainous terrain of upland Britain. When Nerobecame emperor in AD 54, he seems to have decided to continue the invasion and appointed Quintus Veraniusas governor, a man experienced in dealing with the troublesome hill tribes of Asia Minor. Veranius and his successor Gaius Suetonius Paulinusmounted a successful campaign across Wales, famously destroying the druidical centre at Monaor Angleseyin AD 60. Final occupation of Wales was postponed however when the rebellion of Boudicaforced the Romans to return to the south east. The Silures were not finally conquered until circa AD 76 when Sextus Julius Frontinus' long campaign against them began to have success.
Following the successful suppression of Boudicca, a number of new Roman governors continued the conquest by edging north. Cartimandua was forced to ask for Roman aid following a rebellion by her husband
Venutius. Quintus Petillius Cerialistook his legions from Lincoln as far as Yorkand defeated Venutius near Stanwick around 70. This resulted in the already Romanised Brigantes and Parisii tribes being further assimilated into the empire proper. Frontinuswas sent into Roman Britain in 74 AD to succeed Quintus Petillius Cerialisas governor of that island. He subdued the Siluresand other hostile tribes of Wales, establishing a new base at Caerleonfor Legio II "Augusta" and a network of smaller forts fifteen to twenty kilometres apart for his auxiliary units. During his tenure, he probably established the fort at Pumsaintin west Wales, largely to exploit the golddeposits at Dolaucothi. He retired in 78 AD, and later he was appointed water commissioner in Rome. The new governor was the famous Gnaeus Julius Agricola. He finished off the Ordovicesin Wales and then took his troops north along the Pennines, building roads as he went. He built a fortress at Chester and employed tactics of terrorising each local tribe before offering terms. By 80 he had reached as far as the River Tay, beginning the construction of a fortress at Inchtuthilwhich would have been the largest in the Roman world at the time if completed. He won a significant victory against the Caledonian Confederacyled by Calgacusat Mons Graupius. It is conventional to give Bennachiein Aberdeenshireas the location of this battle but some recent scholarship also suggests that Moncrieffein Perthshirewas the site. He then ordered his fleet to sail around the north of Scotland to establish that Britain is an island and to receive the surrender of the Orcadians.
Agricola was recalled to Rome by
Domitianand seemingly replaced with a series of ineffectual successors who were unable or unwilling to further subdue the far north. The fortress at Inchtuthilwas dismantled before its completion and the other fortifications of the Gask Ridgein Perthshireerected to consolidate the Roman presence in Scotland in the aftermath of Mons Graupiuswere abandoned within the space of a few years. It is equally likely that the costs of a drawn-out war outweighed any economic or political benefit and it was more profitable to leave the Caledonians alone and only under "de jure" submission.
Failure to conquer Caledonia
Roman occupation was withdrawn to a line subsequently established as one of the "
limes" of the empire (i.e. a defensible frontier) by the construction of Hadrian's Wall. An attempt was made to push this line north to the River Clyde- River Fortharea in 142 when the Antonine Wallwas constructed. However, this was once again abandoned after two decades and only subsequently re-occupied on an occasional basis. The Romans retreated to the earlier and stronger Hadrian's Wallin the River Tyne- Solway Firthfrontier area, this having been constructed around 122. Roman troops, however, penetrated far into the north of modern Scotland several more times. Indeed, there is a greater density of Roman marching camps in Scotland than anywhere else in Europe as a result of at least four major attempts to subdue the area. The most notable was in 209 when the emperor Septimus Severus, claiming to be provoked by the belligerence of the Maeataetribe, campaigned against the Caledonian Confederacy. He used the three legions of the British garrison (augmented by the recently formed 2nd Parthica legion), 9000 imperial guards with cavalry support, and numerous auxiliaries supplied from the sea by the British fleet, the Rhine fleet and two fleets transferred from the Danube for the purpose. According to Dio Cassius, he inflicted genocidal depredations on the natives and incurred the loss of 50,000 of his own men to the attrition of guerrilla tactics before having to withdraw to Hadrian's Wall. He repaired and reinforced the wall with a degree of thoroughness that led most subsequent Roman authors to attribute the construction of the wall to him. It was during the negotiations to purchase the truce necessary to secure the Roman retreat to the wall that the first recorded utterance, attributable with any reasonable degree of confidence, to a native of Scotland was made (as recorded by Dio Cassius). When Septimus Severus' wife, Julia Domna, criticised the sexual morals of the Caledonian women, the wife of a Caledonian chief, Argentocoxos, replied: "We consort openly with the best of men while you allow yourselves to be debauched in private by the worst". The emperor Septimus Severusdied at Yorkwhile planning to renew hostilities, but these plans were abandoned by his son Caracalla.
Later excursions into Scotland by the Romans were generally limited to the scouting expeditions of "exploratores" in the buffer zone that developed between the walls, trading contacts, bribes to purchase truces from the natives, and eventually the spread of Christianity. The degree to which the Romans interacted with the island of
Hiberniais still unresolved amongst archaeologists in Ireland. The successes and failures of the Romans in subduing the peoples of Britain are still represented in the political geography of the British Isles today, with the modern border between Scotland and England running close to the line of Hadrian's Wall.
*The Great Invasion, Leonard Cottrell, Coward-McCann, New York, 1962, hardback. Was published in the UK in 1958.
Tacitus, "Histories", "Annals" and "De vita et moribus Iulii Agricolae"
*"A.D. 43", John Manley, Tempus, 2002.
*"Roman Britain", Peter Salway, Oxford, 1986
*Miles Russel - Ruling Britannia -
History Today8/2005 p5-6
Francis Pryor. 2004. "Britain BC". New York: HarperPerennial.
*Francis Pryor. 2004. "Britain AD". New York: HarperCollins.
*George Shipway - Imperial Governor. 2002. London: Cassell Military Paperbacks.
British military history
Roman governors of Britain
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