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Leprosy in medieval Denmark: Exploring life histories through a multi-tissue and multi-isotopic approach

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DOI

  • Anastasia Brozou
  • ,
  • Benjamin T. Fuller
  • ,
  • Vaughan Grimes, Memorial University of Newfoundland
  • ,
  • Niels Lynnerup, University of Copenhagen
  • ,
  • Jesper L. Boldsen, University of Southern Denmark
  • ,
  • Marie Louise Jørkov, University of Copenhagen
  • ,
  • Dorthe Dangvard Pedersen, University of Copenhagen, University of Southern Denmark, National Museum of Denmark
  • ,
  • Jesper Olsen
  • Marcello A. Mannino

Objectives: By focusing on two Danish leprosaria (Næstved and Odense; 13th–16th c. CE) and using diet and origin as proxies, we follow a multi-isotopic approach to reconstruct life histories of patients and investigate how leprosy affected both institutionalized individuals and the medieval Danish community as a whole. Materials and Methods: We combine archaeology, historical sources, biological anthropology, isotopic analyses (δ13C, δ15N, δ34S, 87Sr/86Sr) and radiocarbon dating, and further analyze bones with different turnover rates (ribs and long bones). Results: The δ13C, δ15N and δ34S results indicate a C3 terrestrial diet with small contributions of marine protein for leprosy patients and individuals from other medieval Danish sites. A similar diet is seen through time, between males and females, and patients with and without changes on facial bones. The isotopic comparison between ribs and long bones reveals no significant dietary change. The δ34S and 87Sr/86Sr results suggest that patients were local to the regions of the leprosaria. Moreover, the radiocarbon dates show a mere 50% agreement with the arm position dating method used in Denmark. Conclusions: A local origin for the leprosy patients is in line with historical evidence, unlike the small dietary contribution of marine protein. Although only 10% of the analyzed individuals have rib/long bone offsets that undoubtedly show a dietary shift, the data appear to reveal a pattern for 25 individuals (out of 50), with elevated δ13C and/or δ15N values in the ribs compared to the long bones, which points toward a communal type of diet and reveals organizational aspects of the institution.

Original languageEnglish
JournalAmerican Journal of Physical Anthropology
Volume176
Issue1
Pages (from-to)36-53
Number of pages18
ISSN0002-9483
DOIs
Publication statusPublished - Sep 2021

    Research areas

  • bone turnover, diet, mobility, radiocarbon dating, stable isotopes, RATIOS, NORTHERN, STABLE CARBON, FRESH-WATER, BONE-COLLAGEN, EXTRACTION, DIET, PALAEODIETARY, NITROGEN, SR-87/SR-86

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