Based on history books, Rollo will eventually become a Duke of Normandy, which is a region of France.
But Ragnar will eventually discover the intention of Rollo and it would not sit well with him that shall eventually result to a huge confrontation and a higher level of sibling rivalry between him and Rollo.
Michael Hirst, executive producer and creator of “Vikings,” confirmed the confrontation between Ragnar and Rollo in Season 4. He said that the series finale of Season 3 was actually planned and set up to pave the way for Ragnar’s huge confrontation with his brother.
The showrunner added that while Ragnar was in a life-and-death situation towards the end of Season 3, nobody should underestimate the will power of Ragnar and his ability to survive ordeal after ordeal.
He added that the feud between Ragnar and Rollo would only intensify and shall become the show’s focal point for next season.
He disclosed that if Ragnar will accept Rollo’s offer of considerable ownership of land in France as well as his daughter’s hand in marriage, he’s got to do it for what it’s worth and not to play the game of convenience. However, if Ragnar accepts his brother’s offer, it would be a second and much bigger betrayal.