Siegfried, Count of Ardenne & Luxembourg
- 988
| Adalbert Count of Gand | |
| M: | Yes, date unknown |
| Baldwin, Count of Flanders V 1012-1067 |
| Baldwin, Count of Flanders V | |
| B: | 1012 |
| D: | 1 Sep 1067 |
| Lille | |
Adelaide Princess of France 1009-1079 |
| Adelaide Princess of France | |
| B: | 1009 |
| M: | 1028 |
| Paris, France | |
| D: | 8 Jan 1079 |
| Messinesmonastre | |
| Luxembourg, Ogive of 995-1030 |
| Luxembourg, Ogive of | |
| B: | 995 |
| D: | 21 Feb 1030 |
| Baldwin, Count of Flanders (the Forester) IV | |
| B: | 980 |
| M: | 1012 |
| D: | 30 May 1036 |
| Frederick, Count of Luxembourg I 965-1019 |
| Frederick, Count of Luxembourg I | |
| B: | 965 |
| D: | 6 Oct 1019 |
| Gueldre, Irmintrud of | |
| M: | Yes, date unknown |
|
| Siegfried, Count of Ardenne & Luxembourg | |
| D: | 26 Nov 988 |
| Nordgau, Hedwig of Bef 972- |
| Nordgau, Hedwig of | |
| B: | Bef 972 |
| M: | Yes, date unknown |