When Women Shaped Society in Iron Age Great Britain

Old companies did not all function on a strict patriarchal model. In Great Britain, at the Iron Age, certain communities were organized around women, a fact today confirmed by the analysis of several genomes from burials in Dorset. Researchers from Trinity College Dublin and Bournemouth University identified a matrilocal social structure, where men left their original group to reach that of their wife.

Published in the journal Nature, this study reveals that the heritage was mainly transmitted by women, a phenomenon observed in other regions of the island. These results question the image conveyed by Roman columnists and raise new questions about the organization of Celtic societies. What did the power of women really mean in these communities and how did this structure have shaped their history?

A company focused on women

To achieve these conclusions, the researchers sequenced the DNA of 55 individuals from the Iron Age of Iron in Great Britain, mainly in Winterborne Kingston, in Dorset, as well as two female tombs well endowed with funeral objects Langton Herring and Maiden Newton.

These sites offer a unique overview of funeral and social practices of the Iron Age in Great Britain. Winterborne Kingston, nicknamed “Duropolis” by the archaeologists of Bournemouth University, was active between 100 BC. AD and 100 AD. It includes several small cemeteries with burials in the bent position. These burials are remarkable for their preservation and by the richness of certain funeral objects, in particular those of the female tombs, which contained jewelry and bronze mirrors.

Burial of a young woman sampled for DNA, who was buried with a mirror (right panels) and jewelry. An amulet shows a Char driver representing victory. © University of Bournemouth

The analysis focused on mitochondrial DNA, transmitted exclusively by the maternal line and nuclear DNA. This made it possible to establish more complex kinship links. Thanks to the identical segments method by descendants (IBD), they were able to reconstruct a detailed family tree. They identified a dominant maternal line and highlighted the low diversity of Y chromosomes combined with strong mitochondrial homogeneity, the researchers conclude that women remained in their community. On the contrary, men migrant to settle there.

The genetic footprint of women and a matrilocal lifestyle

By comparing the mitochondrial DNA of these sites, the researchers found that matrilineal transmission was therefore not limited to Dorset. In Pocklington, in Yorkshire, more than 80 % of individuals belonged to a limited number of maternal lines, suggesting a similar organization. This phenomenon is also found in other Iron Age sites, such as Worlebury (Somerset) or Gravelly Guy (Oxfordshire). The low mitochondrial diversity indicates low female mobility and high stability of maternal lines over several generations.

On the other hand, the diversity of the Y chromosomes, which are transmitted by the paternal line, is much more marked. She thus confirms that men frequently changed community. These genetic patterns reinforce the hypothesis of a structured matrilocal lifestyle, where the identity of the group was based on maternal ancestry, a very different model of well -documented patrilineal societies in prehistoric Europe.

The study of burials brings another crucial indication: women, often buried with prestigious objects, occupied a central place in society. In Dorset, some were buried with bronze mirrors or glass jewelry as mentioned above. There are even Roman amulets representing a woman leading a tank, a symbol of victory. On the other hand, men received fewer funeral objects, which could translate a different social role. Or less importance in family inheritance. The recurrence of these practices in several British sites suggests a sustainable and well -established organization.

In addition, the researchers found that some men buried in Dorset had a partly continental genetic ancestry. There would therefore have been a brewing with populations from Europe. These migratory movements were therefore integrated into a matrilocal setting. They probably helped shape Celtic cultural identities.

A reality that goes beyond Roman stories

It becomes obvious that the Roman sources, although Essential to understand the history of ancient Britain, must be interpreted with caution. Julius Caesar and Tacitus, describing Celtic societies, insisted on practices deemed exotic or barbarians. We can notably read the supposed polygamy of British women there. But above all, we find their freedom to govern. These stories, influenced by the Roman patriarchal gaze, sometimes aimed to justify the conquest. It appeared more appropriate to dominate a people by depicting it unruly and requiring a civilization.

However, the results of the genetic study show that matrilineal transmission and the place of women in Celtic society were neither anecdotal nor exaggerated. The existence of dominant female lines, coupled with the analysis of burials rich in prestige objects, confirms that women have a central role in the perpetuation of communities and the transmission of resources. Responsibilities that were traditionally masculine in the Roman world.

This reality is also corroborated by historical figures such as Boudica and Cartimandua. Boudica, Queen of Iceni, led a violent revolt against Rome in 60 AD. AD, shaving several cities and killing around 80,000 people according to ancient sources. Cartimandua, queen of the brigants, adopted a different strategy. He chooses to ally himself with the Romans and deliver the rebel chief Caratacos. These examples illustrate the diversity of the political roles of women in pre-Roman Britain. As archaeologist Miles Russell points out, ” The Romans were shocked to see women at the head of armies or having political power ». We see here what reflects a cultural gap more than a historical anomaly.

An unknown heritage of the Iron Age

These new analyzes make it possible to better understand the social and demographic dynamics of the British Iron Age. They question the idea that ancient societies were universally dominated by men. They open the way to a broader reflection on the evolution of family structures in Europe. A more precise image of the companies of the Iron Age is emerging, far from the clichés of Roman propaganda.

© University of Bournemouth

The weight of maternal lines, male mobility and the importance of women in the transmission of goods and power constitute fundamental elements of this social organization. Besides, there are echoes in certain traditional cultures still today.

History has long been written by the winners, but DNA does not lie.

Source: Cassidy, LM, Russell, M., Smith, M. et al., “Continental influx and pervasive matrilocality in Iron Age Britain”. Nature 6371136–1142 (2025).