Sigtrygg was the son of Harald I Halfdansson and Gyda Eriksdatter. The date and place of his birth have not been found.
Harald I Halfdansson |
Halfdan III Gudrødsson |
Gudrød Halvdansson |
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Åsa Haraldsdottir |
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Ragnhild Sigurdsdatter de Ringerike |
Sigurd Helgesson Hjort |
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Thyrna Haraldsdotter |
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Gyda Eriksdatter |
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