1) Viking warrior 
Hvitserk `Whiteshirt` was one of the legendary sons of the 9th-century Norse king Ragnar Lodbrok and his wife Kraka, attested to by the Ragnarssona þáttr. Since he is not mentioned in any source that mentions Halfdan Ragnarsson, some scholars have suggested that they are the same individual. After having avenged his father together with his br.....