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Abstract:
The Camino de Santiago emerged in the first half of the 9th century CE following the reported discovery of the remains of the Apostle St James by the bishop of Iria-Flavia, Teodomiro. Since then, hundreds of thousands of pilgrims have walked from different parts of the Iberian Peninsula, Europe, and further afield to Santiago de Compostela's Cathedral. This route was particularly important to the populations of Navarre and Aragon, two kingdoms in northern Spain that rose to prominence with the resurgence of Christianity from the 11th century onwards. Here, we present multidisciplinary analysis of medieval individuals buried in Navarre and Aragon at a time when the Camino de Santiago was reaching its peak of popularity (11th-15th centuries CE). We use stable isotope analysis (δ15N, δ13C, δ18O, and δ13Cap) and radiocarbon dating to investigate a total of 82 human individuals together with 42 fauna samples from 8 different archaeological sites located in the northeast of the Iberian Peninsula. Twenty of these individuals were buried with a scallop shell, a symbol of a pilgrim who had completed the Camino de Santiago. Our data corroborate the use of the pilgrim's shell since at least the 11th century CE. Moreover, our results suggest that the pilgrimage was mainly an urban phenomenon for populations from the northern Iberian Peninsula, conducted equally by women and men, although with indications that female pilgrims may have had greater access to animal protein than their male counterparts. Our results represent the largest isotopic dataset of medieval individuals linked to the Camino de Santiago, allowing us to further investigate the origins and diets of potential pilgrims and, more generally, other sampled portions of northeastern Iberian society.
