Ragnar Lothbrok (Travis Fimmel), who went on various travels and raids with his brother, Rollo (Clive Standen), but were the real Ragnar and Rollo also brothers? Created by Michael Hirst, Vikings became one of the most popular and successful historical dramas in recent years, and it was widely praised for the performances of its main cast. Vikings was full of drama, battles, and betrayals, and while it’s based on historical figures and events, it wasn’t always historically accurate.

During its first four seasons, Vikings was led by Ragnar Lothbrok, accompanied through various raids alongside his Vikings brothers. Ragnar met his fate in Vikings season 4, after which his sons took over the series until its end, but one character from season 1 that survived the whole series, though he didn’t return in the final season, was Ragnar’s brother, Rollo. Ragnar and Rollo’s relationship was marked by their rivalry, with Rollo tired of living under his famous brother’s shadow, and he was ultimately able to separate himself from Ragnar and became Duke of Normandy, while Ragnar was killed by King Aelle. Their rivalry was a focal point throughout the first seasons of Vikings, but like many other things in the series, Rollo and Ragnar being brothers isn’t historically accurate.

Related: Vikings True Story: How The Real Ragnar Lothbrok Died

Why Vikings Made Ragnar & Rollo Brothers

Vikings Rollo and Ragnar

It’s unclear exactly when and why Rollo chose to stay in and went on to become the first ruler of Normandy.

What Happened To The Real Ragnar & Rollo

Vikings why Rollo hates Ragnar

Rollo was a real Viking and ruler of Normandy, who led many raids before settling in Northern , where he married Princess Gisla. Among Rollo’s descendants are William Longsword, Richard the Fearless, and Gerloc (also known as Adele), who married William III, Duke of Aquitaine. Another direct descendant of Rollo is Emma of Normandy, who’s one of the main characters in the sequel series what happened to the real Ragnar, though the sagas say he died when he was thrown into a pit of snakes, just like in Vikings, but when taking into that he might be a combination of the aforementioned historical figures, Ragnar could have been murdered (Rginherus), died in battle (Horik), or died in an attempted invasion (Reginfrid).

Next: Who Is Bjorn's Real Father On Vikings? Why It's Probably Rollo (Not Ragnar)