Halfdan Ragnarsson was a Viking who lived during the 9th century. He is best remembered for being one of the commanders of the Great Heathen Army which invaded the Anglo-Saxon kingdoms of England. There is a popular belief that the Viking became the King of Dublin upon his arrival in Ireland. But it was not an easy time to rule and Halfdan died while fighting to retain his kingdom. Generally speaking, Halfdan is considered to have been a historical figure, though he is known by different names depending on the source consulted. When the 9th century Great Heathen Army split into two, one half of it went on a campaign in the north, with Halfdan as its leader. According to
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