Margaret Fredkulla (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. She is known as Margareta Fredkulla in Sweden, Margret Fredskolla in Norway and Margrete Fredkulla in Denmark.[1] An English exonym is Margaret Colleen-of-Peace.