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In page Helena Pedersdatter Strange:

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Her father was the Danish knight Peder Strangesson and her mother was Ingeborg Esbernsdatter, of the noble Hvide clan, a niece of Danish Archbishop Absalon. She is believed to have married the Swedish regent Canute in about 1225, though the exact year is not known. From 1222 he was the regent for the child monarch, King Eric XI of Sweden, and took the throne himself in 1229, thereby making Helena, or Elin as she was often called in Sweden,[citation needed] Queen. She used the same seal as her husband on official documents, a curious fact which indicates that she may have exerted some political influence.[1]