Hvitserk
Hvitserk is Ragnar and Aslaug’s second son. Throughout the series, he appears to be a very confused character. His experiences in Frankia shaped him to become a non-combative person. Losing his father while being one of many children to the queen forced him to look at Ubbe as somewhat of a fatherly figure.
Later on in the series, the two would bear the responsibilities of preventing Ivar and Sigurd from killing each other as kids. As the show progresses, we learn that all he ever yearned for was to start his own family. Hvitserk would eventually leave his pagan ways and accept Christianity.