Is there a consensus among historians on the existence of Ragnar Lodbrok?

by mistacheezit

What is the prevailing view on his existence? Were his sons real too? Was he just a legendary creation for kings to claim lineage? If he truly existed what accomplishments can we attribute to him? Who/what resources do we rely on from the time period of his existence?

y_sengaku

This is one of FAQ on the Vikings in this subreddit.

There will always to be said more, I'd especially recommend the first thread:

I'm also willing to answer some more follow-up questions, though not within 12 hours today.