The bones in the chapel were first stacked into heaps by Cistercian monks. Later in 1870, the Schwarzenberg family hired a Czech woodcarver and carpenter, Frantisek Rint, to organize the bones. No one knows what inspired his creativity, but he was a talented sculptor. He created a giant changelier made from every bone in the human body, and the Schwarzenberg coat of arms complete with a raven pecking at the skull of a Turk. Of course he left his signature in bone.
The intricate designs in the Sedlec Ossuary are unique. It may sound morbid, but it is a fascinating and impressive display, intended to remind visitors of the impermanence of lift and the fact of death.