Nielsen Hayden genealogy
Family: Ludwig II of Thuringia / Jutta of Swabia (F14591)
Ludwig I of Thuringia (1090-1140) 
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Hedwig von Gudensberg ( -1148)
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| Frederick II von Hohenstaufen (1090-1147)
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Konrad von Hohenstaufen (1135-1195)  |
| Ludwig II of Thuringia (1128-1172)
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| Jutta of Swabia (1133-1191)
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| Hermann I of Thuringia (1154-1217) |
| Friedrich of Thuringia (1156-1229) |