Siegfried, Count of Ardenne & Luxembourg
- 988(
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- 1 Siegfried, Count of Ardenne & Luxembourg [1] d. 26 Nov 988
- Nordgau, Hedwig of b. Bef 972
- 2 Frederick, Count of Luxembourg I [1.1] b. 965 d. 6 Oct 1019
- Gueldre, Irmintrud of
- 3 Luxembourg, Ogive of [1.1.1] b. 995 d. 21 Feb 1030
- Baldwin, Count of Flanders (the Forester) IV b. 980 d. 30 May 1036
- 4 Flanders, Ermengarde of [1.1.1.1]
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- 4 Baldwin, Count of Flanders V [1.1.1.2] b. 1012 d. 1 Sep 1067
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- 4 Flanders, Ermengarde of [1.1.1.1]
- 3 Luxembourg, Ogive of [1.1.1]
- 2 Frederick, Count of Luxembourg I [1.1]