Nielsen Hayden genealogy
Family: Arnulf of Ghent / Luitgard of Luxembourg (F1082)
m. May 980Dirk II (920-988) 
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Hildegard of Flanders ( -990)
|
| Siegfried of Luxembourg (915-998)
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| Hedwig (935-992) |
Giselbert ( -1004)  |
| Frederick I of Luxembourg (965-1019) |
| Arnulf of Ghent (951-993)
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| Luitgard of Luxembourg ( -1006)
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| Dirk III (981-1039) |