Dear Mr. Cornwell,

I’m fascinated reading your books but I have a basic doubt. In “Northumbria, the last kingdom” appears the characters names Ragnar, Ubba and Ivar … As far as I know Ubba and Ivar were sons of Ragnar and in your book they are presented like contemporary of him and not like sons … Could you please explain that to me?

Thanks in advance for your answer …

Kind regards

Guillermo