Nielsen Hayden genealogy
Family: Willem I of Holland / Aleida van Gelre (F13014)
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Floris III of Holland (1140-1190)
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Aleida of Scotland ( -1204)
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Margaretha van Holland ( -1204)  |
| Otto I van Gelre (1150-1207)
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| Richardis von Scheyern-Wittelsbach (1173-1231)
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| Irmgarde van Gelre ( -1231) |
| Mechteld van Gelre ( -1248) |
| Gerhard van Gelre (1185-1229) |
| Willem I of Holland (1170-1222)
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| Aleida van Gelre (1187-1218)
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| Floris IV of Holland (1210-1234) |