Heribert of Gleibur, Count of Gleibur I
- 992( = Descendancy chart to this point, = Expand, = Collapse)
- 1 Heribert of Gleibur, Count of Gleibur I d. 992
- Irmengarde Megingoz
- 2 Ermentrude of Gleiburg
- Frederick, I of Luxembourg b. Abt 965 d. 06 Oct 1019
- 3 Judith de Luxembourg b. Abt 1000 d. Aft 1057
- 3 Ogive de Luxembourg d. 21 Feb 1029/30
- Baldwin, IV Count of Flanders b. 980 d. 30 May 1035
- 4 Baldwin, V Count of Flanders b. 19 Aug 1012 d. 01 Sep 1067 [ =>]
- Baldwin, IV Count of Flanders b. 980 d. 30 May 1035
- 3 Ralph of Ghent
- Gisele of Luxembourg
- 4 Gilbert de Gaunt, Baron of Folkingham d. Abt 1095 [ =>]
- Gisele of Luxembourg
- 3 Giselbert of Luxembourg b. Abt 1007 d. 14 Aug 1059
- Unknown
- 4 Conrad, I Count of Luxembourg b. Abt 1040 d. 08 Aug 1086 [ =>]
- 4 Hermann of Salm b. Abt 1035 d. 28 Sep 1088 [ =>]
- Unknown
- Frederick, I of Luxembourg b. Abt 965 d. 06 Oct 1019
- 2 Ermentrude of Gleiburg
- Irmengarde Megingoz