What did you learn about harald brother?

Harald's brother, often referred to as Halfdan or another name depending on the context, played a significant role in Viking history and literature. He was typically depicted as a co-ruler or warrior alongside Harald, contributing to their collective exploits in battles and territorial expansion. Their relationship showcased the importance of brotherhood and loyalty in Viking culture, often emphasizing themes of valor and shared destiny. Additionally, their dynamic reflects the complexities of leadership and kinship during the Viking Age.