Nielsen Hayden genealogy
Family: Baldwin IV "The Bearded" / Otgiva (F862)
m. Abt 1005Arnulf II "The Young" ( -987) 
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Rozala of Italy, Queen Consort of France (945-1003)
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| Giselbert ( -1004)
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| Baldwin IV "The Bearded" (980-1035)
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| Otgiva (995-1030)
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Baldwin V (1010-1067)  |