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Margaret Fredkulla (Swedish: Margareta Fredkulla; Danish: Margrete Fredkulla; Norwegian: Margret Fredskolla; 1080s – 4 November 1130) was a Swedish princess who became successively queen of Norway and Denmark by marriage to kings Magnus III of Norway and Niels of Denmark. She was also de facto regent of Denmark. An English exonym is Margaret Colleen-of-Peace.