Cartimandua, or Cartismandua, was the queen of the Brigantes, an Iron Age Celtic people living in Britain. She ruled from about AD 43 to 69, when Rome was actively subjugating Britain and incorporating it into the Roman Empire. What we know of her comes through the Roman eyes of the historian Tacitus. She is best known for betraying Caratacus, the chieftain of the Catuvellauni tribe and leader of an anti-Roman resistance in Britain, to the Romans to secure her own power. Historically, this has placed her in the shadow of her more famous contemporary, Boudica, who led a revolt against the Romans in AD 60 to 61. But is Cartimandua really a villain in the story of the Celts of Roman Britain?
The Political Landscape of Northern Britain in AD 43
When the Roman emperor Claudius launched the Roman invasion of Britain in AD 43, his generals did not march into a unified nation. Instead, the island was a complex, volatile mosaic of independent Celtic tribes defined by shifting alliances, dynastic rivalries, and starkly opposing views on Roman influence. While the southern and eastern regions of Britain were already influenced by decades of Roman trade and diplomacy, the western and northern frontiers remained fiercely traditional.
The Brigantes controlled territory, known as Brigantia, in northern England covering areas of modern Yorkshire, Lancashire, Cumbria, Durham, and Northumberland. It is unclear whether they were one large tribe or a confederation of allied peoples occupying a shared region, but they were one of the largest cohesive Celtic tribes in Britain. It has been suggested that they were named after the goddess Brigantia, whose name has proto-Celtic roots in the word “Briganti” and means “The High One.” The Romans identified her with Minerva, suggesting that she may have had similar associations with wisdom, victory, and strategy. We have insight into their material culture from the discovery in 1845 of the Stanwick Hoard, 140 objects, probably buried for religious reasons, believed to have come from an important stronghold of the Brigantes.
Celtic Queens in Roman Britain
The massive size of their territory meant that the Brigantes occupied a critical buffer zone between the newly established Roman province in the south and the unsubdued tribes in the north. In AD 43, Cartimandua was their hereditary queen alongside her husband Venutius.
The role of Celtic women in the Iron Age is unclear. Many of the richest grave deposits that have been uncovered clearly belonged to women, which indicates that they could amass their own wealth. Some sources suggest that they enjoyed military training and fought alongside their men, but this could be Roman sensationalism of an unfamiliar enemy. However, it is clear that elite women could rise to positions of considerable power. In addition to Cartimandua, Boudica was also a Celtic queen of the 1st century AD, and there may have been others whose stories have not survived through history. But scholars caution against viewing Iron Age tribal structures as fully egalitarian.
Boudica was born in Camulodunum in the Romanized south and was married to Prasutagus. Boudica became the singular ruler of the Iceni tribe after Prasutagus’ death. Prasutagus was loyal to Rome, and Boudica only revolted in AD 60-61 after Rome ignored his wishes for part of his kingdom to go to their daughters. If Rome had respected their earlier agreement, it is unclear whether Boudica would have held any anti-Roman sentiment. Her reign was short-lived and only lasted for the few years that her rebellion did. By contrast, Cartimandua may have ruled for over two decades.
The Rise of Queen Cartimandua in Roman Britain
Not much is known about Cartimandua’s life outside of her marriage to Venutius and betrayal of Caratacus. It is thought that she was of very high birth, and it is unclear whether her rulership over the Brigantes was hereditary or not. There is evidence to suggest that she was the granddaughter of King Bellnorix, which would indicate that she was from the ruling dynasty and Venutius married in. He is often referred to as her “consort” in writings from the period, which offers more evidence that she was the rightful ruler of the two.
There is not much written about Bellnorix aside from his relation to Cartimandua, so as with many of the finer details about Iron Age Celtic figures, this family tree is murky at best. It is not recorded whether Cartimandua had any children with Venutius. Much of what is known about her comes from the writings of the Roman historian Tacitus, and according to him, she was an influential leader.
Forging the Client Kingdom Alliance With Rome
It is unclear exactly when Cartimandua came to power. She became queen either before the Roman invasion of Britain in AD 43 or soon afterward. When the Romans invaded, eleven Celtic kings surrendered to him at Camulodunum. Either Cartimandua or a family member was probably among this group, though the presence of a woman is not noted in the sources.
During her reign, Cartimandua chose to ally with Rome and cooperate with them, in contrast to other groups that chose to rebel against them and were subsequently killed. Though it is easy to imagine that a revolt, such as that led by Boudica in AD 60/61, was the more honorable choice, one could argue that Cartimandua merely saw allying with Rome as the easiest way to protect her people.
The Flight and Capture of the Rebel Chieftain Caratacus
The most significant event of Cartimandua’s reign was her betrayal of Caratacus in c. AD 51. Caratacus, son of the Celtic king Cunobelinus and king of the Catuvellauni, had been leading a rebellion against Rome, primarily leading his opposition from Wales. He was defeated by Roman governor Ostorius Scapula in 51 and, according to records, sought sanctuary with Cartimandua and the Brigantes.
Instead of helping Caratacus, Cartimandua turned him and his family over to the Romans. They were taken to Rome and “paraded in Claudius’s triumph” as a “spectacle of victory” over the Celtic Britons. Caratacus asked for clemency before Rome, which Claudius granted. Caratacus lived out the rest of his life in Italy. Though Cartimandua was rewarded for her betrayal, it is believed that the act turned her people against her.
Dynastic Fractures and the Civil War Against Venutius
Cartimandua had a messy divorce from Venutius during her reign. In AD 57, Venutius led an anti-Roman faction against Cartimandua and attempted to seize power. It is unclear whether this event was the cause of the divorce or happened because of it. Cartimandua and Venutius clearly had differing views on handling the alliance with Rome. The queen took several members of Venutius’s family hostage, provoking another attack, but Rome came to her aid and upheld her rule in Brigantia.
Cartimandua also took Venutius’s former armor-bearer, Vellocatus, as her new lover during this time. This development is said to have angered her people further after the events with Caratacus. Again, it is unclear whether this relationship had any bearing on Venutius’s rebellion, but according to Tacitus, it is at least believed to have been a factor in his second attempt to seize power in AD 69. This time, Venutius was successful. Rome was enduring a civil war after the death of the emperor Nero and was unable to send aid to Cartimandua. Venutius replaced her as ruler of the Brigantes.
Roman Evacuation and the Annexation of the Brigantes Domain
According to Tacitus, the Roman governor, with most of his troops involved in the Roman civil war, sent a small force, which failed to restore Cartimandua, but evacuated her from the region. What happened to her after that is unclear, but her choice to ally with the Romans seems to have been proven wise. When Vespasian came to power in Rome at the end of AD 69, his former client kingdom was now ruled by a hostile, anti-Roman king. Boudica had already shown the anger this represented.
Vespasian, who had previously served in Roman Britain, decided that Brigantia should be taken by force and ruled directly. Between AD 71 and 74, Petillius Cerialis invaded Brigantian territory, breaking the back of the coalition in a series of brutal battles and establishing a permanent legionary fortress at Eboracum, modern York. Between AD 77 and AD 84/85, the general Agricola completed the subjugation of Brigantia by building a dense network of forts, roads, and watchtowers across Northern England. He forced the remaining tribal elites to assimilate into Roman culture, law, and administration.
Reevaluating Cartimandua Through the Lens of Roman Historiography
As mentioned, much of what we know about Cartimandua comes from the writings of Tacitus. More broadly, much of what we know about Iron Age Celtic Britons comes from Roman writings. These were intended to characterize the Celts as barbarians on the periphery of civilization to justify Roman imperialism. Therefore, Roman writings about the Celts, though useful when the Celts left no written sources of their own, must always be taken with a grain of salt.
It seems evident from his writing that Tacitus maintained prejudices against women in power, and Cartimandua was no exception. The way that he wrote about her was impacted by such prejudices, and subsequently, her legacy has been shaped by them. Tacitus wrote that Cartimandua was lustful and was rejected as a ruler because of her gender. However, the archaeological evidence suggests that Celts had little issue with powerful women. It also seems, from the written record, that Boudica was well-received by her people. If the Brigantes disliked Cartimandua, it was likely not because of her gender. It was more likely because of her loyalties to Rome and her divorce from Venutius.
Tacitus also characterized Cartimandua as treacherous for her role in handing Caratacus over to Rome. While those Britons who were anti-Roman would absolutely agree, Cartimandua clearly felt that cooperation would be better for the security and prosperity of her people. The Romans benefited from using Brigantes land as an outpost. Cartimandia certainly benefited when Rome sent support during Venutius’s initial rebellion.
It seems odd that Tacitus would write about Cartimandua in such a negative way when she was clearly pro-Rome, or at the very least not anti-Rome. He was likely interested in undermining her role as a woman queen. Such a role went against Roman conventions and highlighted the barbaric “otherness” of Celtic Britain.
