| Styrbjorn "The Strong" Olafsson Prince of Sweden (~0903 - 0984) |
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| Thyra Haraldsdottir Blauzahn, of Denmark ( - 1000) |
| Thorgils (Thorkil) "Sprakalog" Styrbjornsson Jarl |
| b. abt 0970, Uppsala, Uppsala, Sweden d. bur. occ. cen. im. . ud. |
| Ulfius Thorgilsson Gytha of Kent |