Were all Viking societies equally violent? Apparently not, according to this comparison (https://www.sciencedirect.com/science/article/pii/S0278416524000369?via%3Dihub#s0125)of Norway and Denmark. Although I have some concerns about the actual compatability of the two skeletal samples (and that the Norwegian sample is a bit small), it's an interesting approach to using a range of archaeological evidence to explore a topic.
Ivar Ragnusson (https://en.wikipedia.org/wiki/Ivar_the_Boneless) was really a kind, sympathetic and much misunderstood man. :P
Still waiting for the apology and financial compensation for the ancestors taken and sold into slavery by Scandanavians of all descriptions....
::)