I am just interested in any respectable source that has an estimate of the size of armies that Scandinavian Kings and/or Jarls could muster based on their power and/or location.
I have read answers on the world building stack exchange about how to estimate the fighting man power of a village/town/city based on population, but I want to know if their is any reference that does not seem to exaggerate on the number of vikings to make the defenders seem heroic.
I know they raided in relatively small parties and hit fast which would be interesting to see an estimate on that, but the focus is on any mustered armies.