Styrbjorn Olafsson, of Sweden and Thyra Haraldsdottir Family
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King of Denmark Harald Gormsson, II (910-986)
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Gyrid Olafsson, of Sweden (945- )
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Gunnor, of Crepon (936-1031) 
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 | King of England Sveyn Haraldsson, I (965-1014)
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Thyra Haraldsdottir ( -1000)
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| Styrbjorn Olafsson, of Sweden ( -986)
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| Thorkils Sprakalegg (936- )
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