They can provide population data for the region during two short time periods, and techniques such as isotope analysis can provide information about the diet the people at and environment they lived in by examining the presence of certain elements and minerals in the bones and teeth.

It’s possible there are more graves underneath the chapel itself, but excavating them without damaging the ossuary may be difficult.

In the meantime, Frolík and his team are commencing work on analysing the skeletons, and intend to publish their findings. The results, however, may be some time – the exhumed remains fill 600 large boxes.