Bengt was the son of Ulf Gudmarsson Ulvåsaätten and saint Birgitta Birgersdotter Finstaätten. The date and place of his birth have not been found.
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Ulf Gudmarsson Ulvåsaätten |
Gudmar Magnusson Ulvåsaätten |
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Margareta Ulfsdotter Ulv |
Ulf Karlsson Ulv |
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Katarina Karlsdotter Lejonbalk |
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saint Birgitta Birgersdotter Finstaätten |
Birger Petersson Finstaätten |
Peter Israelsson Finstaätten |
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NN Birgersdotter Två vingar |
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Ingeborg Bengtsdotter Folkungaätten |
Bengt III Magnusson Lejon Folkungaätten |
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Sigrid Tydicksdotter |