Vikings: 7 Surprising Facts About The Real Bjorn Ironside
5. Lagertha Wasn’t His Real Mother
Now Bjorn in the show is described as a loyal son to Lagertha the Shieldmaiden and as we later find out, not the son of Ragnar but his brother Rollo.
But the sagas tell a different story, in which Bjorn is actually the son of Aslaug along with most famously Ivar the Boneless, Hvitserk and Sigurd Snake-in-the-Eye. This would definitely complicate things for the sons of Ragnar after the murder of Aslaug in season 4.
Given their incredible mother and son relationship It’s hard to imagine Bjorn would be coming to Lagertha’s rescue when Aslaugs' sons become