The shroud was also damaged by a fire in the late Middle Ages which could have added carbon material, resulting in a higher radiocarbon content and a later calculated age.

这块裹尸布在中世纪后期遭到火灾破坏，也可能会增加另外的碳元素，这样会产生高放射性的碳素使计算的年代有所延迟。