For decades, this prehistoric grave was a mystery. Have its dark secrets now been revealed?

Devastating illness wiped out a community in Iron Age Serbia – or so it was thought. New research suggests the real story behind a large prehistoric burial site might be much darker

A composite image showing Iron Age stone work against a green landscape.

Published: March 20, 2026 at 11:15 AM

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As Europe progressed into the early Iron Age, it marked the beginning of a new chapter in prehistory.

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The Iron Age in Europe began roughly around 900 BC, when iron tools and weapons began to replace those made from bronze. The transition brought technological change, accompanied by major shifts in social organisation.

Clan-based communities that had long relied on mixed economies of farming, herding and seasonal mobility began to organise themselves into static chiefdoms organised around powerful leaders. Settlements grew larger, and trade networks expanded across the continent, opening up new opportunities for cultural and economic exchange.

It was a change that created new ways of living – and new ways of dying, too.

Across central and south-eastern Europe, landscapes appear to have been increasingly contested as communities vied for access to new trade routes and fertile land, clashing over opposing ideas, beliefs, territorial needs and resources. In some cases, these disputes descended into violent conflict.

Archaeological evidence from this period includes fortified hilltop settlements, weapon deposits and graves showing signs of trauma, all suggesting that warfare and organised violence were becoming more common in parts of Iron Age Europe.

The Carpathian Basin of south-eastern Europe – the vast region spanning parts of modern Hungary, Serbia, Croatia and Romania – forms a natural crossroads between central Europe, the Balkans and the eastern Mediterranean, making it an important corridor for trade, migration and cultural exchange during the prehistoric period. It was one of these dangerous zones of violent change.

It was in this region, in 1954, that archaeologists first uncovered a site called Gomolava along the banks of the Sava River in northern Serbia, which dates to the earliest years of the Iron Age, around 2,800 years ago.

Gomolava is a large archaeological mound known as a tell – a mound formed by centuries of repeated building in the same location. When archaeologists excavated the site in 1971, they found evidence of a mass burial that dated to this early Iron Age period of flux.

New bioarchaeological research conducted on the human remains has revealed a plethora of unsettling mysteries.

The mysterious mass grave at Gomolava

Inside the burial – a shallow circular pit just three metres wide – were the remains of 77 humans.

The bodies had been carefully placed together, and more than half of them were children under the age of 12. The grave appeared to represent the aftermath of a catastrophe such as disease or famine – something that might explain the disproportionate number of the young. Mass burials in archaeological contexts are often initially interpreted as the result of epidemics, starvation events or natural disasters, particularly when many children are present.

Archaeological excavation showing multiple human skeletons arranged in a circular burial pit.

Excavations at the Gomolava site revealed an Iron Age burial in which 77 individuals were interred together in a circular arrangement. (Photo by Nature Human Behaviour, Fibiger et al)

But a new analysis of the skeletons, published in Nature Human Behaviour, paints a decidedly more disturbing picture.

A team led by archaeologists and bioarchaeologists from several European institutions re-examined the bones, which have been stored for decades at the Museum of Vojvodina in Novi Sad, Serbia. Their initial expectation was to confirm the original interpretation: that this was a community burial following an epidemic.

Instead, they found signs of extraordinary and calculated violence.

Roughly one in five individuals displayed clear trauma injuries, including fractured skulls, cuts made by bladed weapons and damage consistent with arrow strikes. Because many lethal injuries – particularly those affecting soft tissue, such as cuts to the throat – leave no marks on bone, the researchers believe the true number of victims who died violently was probably far higher. The team concluded that the entire group had likely been deliberately killed.

The first obvious question was: why?

Rather than offering answers, further genetic testing only deepened the mystery.

Apart from one mother buried with her two daughters, the individuals in the grave were not closely related to each other. Isotope analysis of their teeth – which preserves chemical signals from childhood diet and environment – revealed that many of them had grown up in different regions and eaten different kinds of food. The victims weren’t members of a single family group, or village. Instead, they appear to have come from multiple communities across a wider region – but they all died and were buried together in the same place.

The burial also contained personal ornaments including brooches, bracelets and rings, suggesting the bodies hadn’t been looted. Unexpected animal bones found within the grave also hint that the burial may have involved offerings or feasting rituals (animal remains placed alongside human burials are often interpreted by archaeologists as evidence of ritual activity connected with death and commemoration).

The final mystery offered by analysis of the mass burial was that this violence was targeted at women and girls.

In total, over 60 per cent of the victims were children and, more than 70 per cent were female.

The picture that the archaeologists were uncovering began to look like a deliberate, possibly ritualistic, mass killing of women and children originating from the wider region.

But what would that mean? And what, if anything, can it tell us about broader Iron Age societies? To begin answering these questions, it helps to place the findings within wider archaeological debates.

Speaking to HistoryExtra about the research, Professor Penny Bickle, an expert in funerary archaeology at the University of York, says that it’s important to resist looking for single, decisive answers. She situates the findings within a broader shift in how archaeologists understand violence in prehistory.

“In the past archaeologists have debated how violent prehistory was in depth, but had a tendency to treat violence as an either/or scenario. Either prehistory was totally peaceful and harmonious or violent and dangerous. Over recent years, as a discipline we've come to understand that this binary is not very helpful. Violence is present in all societies, and the interesting questions are: when and why did it take place, and who was it targeted at?”

Illustration of an Iron Age burial site with people gathered around a pit filled with bodies and offerings.

An artist’s reconstruction depicts the Iron Age burial at Gomolava, where individuals – primarily women and children from diverse regions – were interred together. (Art by Sara Nylund, Nature Human Behaviour, Fibiger et al)

Power, symbolism and the limits of the evidence

One possible way to interpret the evidence is through the lens of power and display.

The researchers themselves note that the victims in the burial were most likely deliberately selected. Instead of killing enemy warriors – the most immediate threat – the perpetrators targeted women and children: the people who, in a biological sense, would represent the future of their communities.

Professor Bickle confirms that this is certainly noteworthy. She points out how unusual the demographic profile of the burial is compared to other mass graves: “Often in cases of mass burial, young women are less well represented, but there are a mix of genders and age. The mass burial at Gomolava does stand out as the deliberate targeting of females.”

One interpretation of the killing of these people, then, could be that this was a carefully orchestrated public display of dominance and power by one group over other regional groups by the symbolic killing of their women and children.

The implication from whoever led the killing may have been: ‘during this period of change, we’re in charge’.

Adding to this idea is that the burial itself sits atop a prominent settlement mound that overlooks the surrounding landscape. It’s a visible landmark for all who were local to it. By placing the victims in this place, accompanied by animal offerings and valuable personal items, the people behind the killings could have been creating a highly visible statement of dominance over the present – and the future.

Illustration of an Iron Age man and woman standing near a roundhouse settlement.

A reconstruction shows an Iron Age man and woman near a roundhouse at Old Sarum, an early settlement near present-day Salisbury, England. Communities reflected regional variations in Iron Age life across Europe, where architecture, dress, and daily practices differed widely by culture and landscape. (Photo by Getty Images)

The act may have functioned in much the same way as the ritual destruction of weapons or treasure hoards found elsewhere in Bronze Age Europe. Across prehistoric Europe, archaeologists have discovered numerous hoards of deliberately buried weapons, tools and valuables, which are often interpreted as ritual deposits meant to display wealth, reinforce authority or communicate religious or political messages. In those cases, valuable objects were deliberately sacrificed to demonstrate authority and power. It’s an idea that there are echoes of in this mass burial – albeit with valuable humans being sacrificed, rather than valuable goods.

That’s one interpretation – and it might seem like the only interpretation that makes sense of all the various strands of evidence when put together. However, this interpretation is far from definitive. Experts argue that, sometimes, the attempt to extract grand conclusions from single sites is inherently problematic.

Professor Bickle stresses that such acts are often rooted in specific local circumstances rather than broad, universal patterns: “My sense is that these acts of violence are often bound up in local or regional events, rather than having an underpinning evolutionary development. While projects like this give us insight into how mass violence took place, they do not give us definitive answers as to why these events took place. This will take careful regional analysis of a broader range of archaeological and environmental data.”

Professor Howard Williams, an archaeologist at the University of Chester, is an expert on the study of death and burial. Speaking to HistoryExtra, he agrees on the importance of understanding the local context.

“I would emphasise the need for further fieldwork in the locality to help understand their relationship with contemporary mortuary practices and settlement patterns to help provide context. Exceptional mass graves hit the headlines, but we often lack the fine-grained understanding of the specific time and locality to extrapolate out to broader patterns of violence.”

In other words, without a deep understanding of that local context, the evidence presented by the new research arguably leaves more questions than answers.

The victims’ diverse origins suggest they may have been refugees, captives or displaced people moving through the region during a time of upheaval. They might have been intercepted by a rival group while journeying along the Sava River corridor.

Pointing to this ambiguity, Professor Williams highlights the range of plausible scenarios that still fit the evidence: “It isn’t clear to me we can rule out the wholesale massacre of one population who had themselves disparate origins, or hostages or captives brought from far-and-wide to represent a wider population.”

Continuing to highlight the other potential explanations, he says that even the meaning of the burial itself remains open to interpretation: “regarding the mass grave itself, it might have been created by the survivors to honour loved ones and remembered as a focus of veneration, remembrance and resistance to the perpetrators – or a mass grave created to perpetuate intimidation and hegemony by the perpetrators.”

Without written records, the motivations behind the massacre can only be inferred indirectly – it can only be guesswork, based on the site itself, and knowledge of the broader context.

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What the new research does demonstrate, however, is that large-scale violence in prehistoric Europe might not have been confined to battles between groups over land and resource, or beliefs and ideology. Some episodes of violence may have been deliberately staged acts to communicate power, intimidation and control. The challenge for historians and archaeologists is how to unpick the context of this violence: who it targeted, how it was carried out, and what it was intended to communicate – if anything at all.

Authors

James OsborneSenior content producer

James Osborne is a senior content producer at HistoryExtra

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