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Born in the royal estate of Jelling, Denmark, Sweyn Forkbeard, often referred to as Sweyn I of Denmark, was a significant figure in Scandinavian history. He ruled as the King of Denmark from 986 to 1014 and played a crucial role in the unification of Denmark and the expansion of Danish power in the region. Sweyn's reign marked a period of growth and consolidation for the Danish kingdom.