Nielsen Hayden genealogy
Family: Ludwig II / St. Elisabeth of Hungary (F15371)
m. 1220Hermann I of Thuringia (1154-1217) 
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Sophie of Bavaria (1172-1238)
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Irmgard von Thüringen (1197-1244)  |
| Agnes von Thüringen (1206-1246) |
| András II, King of Hungary (1176-1235)
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| Gertrud von Meran (1185-1213)
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| Béla IV, King of Hungary (1206-1270) |
| Ludwig II (1200-1227)
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| St. Elisabeth of Hungary (1207-1231)
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| Sophia von Thüringen (1224-1275) |