A recent DNA analysis of human remains found in a well in Norway has shed new light on an event described in a medieval saga. The study, published in the journal iScience, suggests that the 800-year-old skeleton is likely from a raid on the Norwegian castle of King Sverre Sigurdsson in 1197. The findings corroborate the events recorded in "Sverris Saga," one of the "King's Sagas" written to glorify Norse kings.
Source: https://www.livescience.com/archaeology/dna-analysis-of-medieval-man-thrown-into-a-well-suggests-story-in-norse-saga-really-happened