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Ribe, Syddanmark, Denmark (Credit: Betofoto on Shutterstock)

In A Nutshell

  • Medieval Danish cemeteries show no spatial segregation of leprosy or TB sufferers: diseased individuals were buried alongside healthy neighbors
  • Burial location was determined by social status and proximity to church structures, not by health status
  • Urban towns had far fewer leprosy cases in cemeteries (3-9%) compared to rural villages (13%), likely due to leprosaria filtering effect
  • Individuals with skeletal TB actually lived longer than their peers: not because TB was beneficial, but because only long-term survivors developed bone lesions

Burial location appears to have reflected social status more than disease in medieval Denmark. An analysis of nearly 1,000 skeletons from medieval Danish cemeteries reveals that individuals with leprosy and tuberculosis were buried alongside their healthy neighbors. Placement appears to have been determined primarily by social status, which often reflected what families could afford.

Researchers examined skeletal remains from five cemeteries dating between 1050 and 1536 AD, using established skeletal lesion criteria and probabilistic scoring methods to identify individuals with leprosy and tuberculosis. The team mapped exactly where each person was buried and found that proximity to church structures was strongly associated with social status, not with whether someone had skeletal signs of leprosy or TB. Wealthy patrons were buried closer to the church and its sacred spaces, while poorer residents were buried farther from the church.

The findings, published in Frontiers in Environmental Archaeology, paint a more complex picture of medieval society than the plague-ridden, disease-obsessed world often portrayed in popular culture. Despite widespread assumptions that the sick were ostracized and isolated, the study found no evidence that diseased individuals were segregated within cemetery grounds.

Where Did All the Urban Lepers Go?

One of the study’s most intriguing discoveries concerns the near-absence of leprosy sufferers in town cemeteries. While the rural village of Sejet showed leprosy rates of 13%, the urban cemeteries of Viborg displayed rates of just 3.4% to 4.6%. Ribe, another urban center and one of Denmark’s oldest towns, showed rates of 8.9%.

The low urban rates likely stem from leprosaria, charitable institutions associated with religious houses that provided care and eventual burial for those with visible symptoms. Medieval people could likely identify advanced leprosy because its facial symptoms were visible. Individuals with severe, noticeable symptoms were more likely to seek refuge in these urban institutions. Those with milder cases often remained in their home communities.

Viborg established its leprosarium by 1263 AD, while Ribe’s dates to 1270 AD. These institutions created a filtering effect, removing individuals with the most severe cases from town burial populations. But this wasn’t necessarily forced isolation. Medieval Christian doctrine emphasized charity as a core virtue, and some scholars argue that many residents may have entered leprosaria voluntarily, finding religious vocation alongside treatment.

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Wealthy patrons were buried closer to the church and its sacred spaces, while poorer residents were buried farther from the church. (Elmelunde Church in Denmark / Credit: trabantos on Shutterstock)

The People Who Survived TB Longest

Here’s where things get counterintuitive. Individuals whose bones showed signs of TB actually lived longer than their apparently healthy neighbors. TB rates ranged from 21.8% to 32% across most sites, with Drotten, an urban cemetery in Viborg, showing an unusually high rate of 51.6%.

This doesn’t mean having TB was good for you. The explanation lies in how the disease works. TB typically attacks soft tissues first, and only people who survived the infection long enough for it to leave marks on their bones will show skeletal damage. Those who died quickly from the disease or from other infections wouldn’t display these bony changes. So the skeletal evidence captures individuals who survived long enough for the infection to leave marks on their bones.

Unlike leprosy sufferers, people with TB weren’t segregated or treated differently in burial. TB symptoms manifested primarily as coughing, chest pain, and general weakness. Without visible external signs until very late stages, TB sufferers weren’t easily distinguishable from anyone else with a pulmonary infection.

Status and Survival in Medieval Cemeteries

At Ribe Grey Friars, a Franciscan friary established in 1232 AD, burials within the monastery church and complex were reserved for friars, those connected to the bishopric, and wealthy benefactors. Parish members were buried in the cemetery north of the complex. At Øm Kloster, a rural Cistercian monastery, the division followed monastic regulations with clergy and nobles buried near the church and lay community members in the northern cemetery.

The research team found that people buried in high-status locations had better survival rates overall, regardless of whether they had leprosy or TB. High-status burial groups had lower mortality risk, which likely reflects differences in living conditions and resources. The only exception was at Ribe Grey Friars, where poorer burials in the northern parish cemetery showed higher TB rates, likely reflecting greater disease burden among lower socioeconomic groups.

Statistical survival modeling showed that urban residents generally faced higher death risks than rural villagers, likely due to recurring epidemics that spread more easily in densely populated areas. But even this varied dramatically between individual cemeteries. Drotten, an urban parish in Viborg, showed the lowest mortality rates of all sites studied, suggesting it primarily served wealthier parishioners. Viborg’s multiple parish churches allowed for social stratification, with different churches catering to different social classes.

Rethinking Medieval Medicine and Morality

The spatial maps created by the research team show diseased and healthy individuals scattered throughout cemetery grounds without distinct clustering patterns. Historical evidence indicates that Cistercian monks followed strict burial regulations that emphasized simple graves regardless of health status. Individuals who died sick received the same preparation, procession, and burial rites as everyone else.

Medieval communities didn’t rely solely on physicians for diagnoses. Clergy, magistrates, and village elders could all be consulted about illness. This broader network meant that diseases with obvious physical manifestations, like advanced facial leprosy, could be recognized and responded to through social interventions like admission to leprosaria.

The research challenges the pervasive modern narrative of medieval society as ignorant and helpless against disease, with towns as cesspools where plague victims were callously discarded. While medieval communities certainly faced serious health challenges, the archaeological evidence reveals more thoughtful and compassionate responses than popular culture suggests. Being sick wasn’t necessarily a damning factor in burial placement or treatment before death. Across these cemeteries, social status appears to have mattered more than disease.


Paper Notes

Study Limitations

The research team focused on adult individuals with sufficient skeletal preservation, which means children and poorly preserved remains were excluded. This creates potential bias, as children would have died more quickly from these infections and would be less likely to show skeletal damage. The dating of skeletons relies on archaeological and historical records of cemetery use periods rather than direct dating methods. Sample sizes vary considerably between sites, with approximately 33% of burials at Øm Kloster and 35% at Sejet included compared to over 89% at Ribe Grey Friars. The spatial division of cemeteries into high-status and low-status burial areas reflects broad categories based on excavated areas rather than detailed historical records of individual burial costs. Finally, the study cannot account for individuals who died of leprosy or TB without developing skeletal damage, meaning prevalence estimates represent minimum values for actual infection rates.

Funding and Disclosures

Data collection was financed by the National Science Foundation (BCS-1825362), Wenner-Gren Foundation (#9604), the American-Scandinavian Foundation, the Velux Foundation, and the Independent Research Fund Denmark (DFF 6107-00284). The authors declared no commercial or financial relationships that could be construed as potential conflicts of interest. Data collection was conducted under institutional and museum curatorial staff supervision, with all handling of human remains adhering to institutional ethical guidelines. The research did not involve destructive sampling.

Publication Details

Authors: Saige Kelmelis (Department of Anthropology and Sociology, University of South Dakota, and Department of Anthropology, The Pennsylvania State University), Vicki Rytoft Kristensen (Department of Forensic Medicine, University of Southern Denmark), Lars Agersnap Larsen (Viborg Museum), Maria Knudsen (Museum Vest, Ribe), Lene Mollerup (Museum Skanderborg), Lone Seeberg (Museum Horsens), and Dorthe Dangvard Pedersen (Department of Forensic Medicine, University of Southern Denmark) | Journal: Frontiers in Environmental Archaeology, Volume 4 | Publication Date: February 12, 2026 | DOI: 10.3389/fearc.2025.1699370 | The skeletal collections include remains from Ribe Grey Friars (n=399), Sejet (n=96), Øm Kloster (n=198), Drotten (n=105), and St. Mathias (n=141), curated at the Unit of Anthropology (ADBOU), Department of Forensic Medicine, University of Southern Denmark, and partner museums. St. Mathias cemetery was in use between approximately 1000 and 1529 AD.

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