Ragnar Sigurdsson, or more commonly known as Ragnar Lothbrok, is the main protagonist of the Vikings series. He is the ex-husband of Lagertha, the brother of Rollo, and the father of Bjorn, Gyda, Ubbe, Hvitserk, Ivar, and Sigurd. Undoubtedly, Ragnar is the most popular character of the series. And his adventures and journey to become king is the main reason why people watch this series. They enjoyed following his adventures as well as his journey from a regular farmer to King of Kattegat. He…