*Judith de Flanders
born about 1014 Flanders

father:
*Baudouin IV "Le Barbu" Count of Flanders
born about 0967/68 Flandres, France
died 30 May 1036/39 Flandres, France

mother:
*Otgive de Luxembourg
born about 0986 Flanders, France
died 21 February 1030 Flanders, France
married about 1004 Flanders, France

siblings:
*Baudouin V (Baldwin) Count of Flanders born about 1012 Flandres
died 1 September 1067 Lille, Duchy of Lower Lorraine, buried Lille, Duchy of Lower Lorraine
*Ermengarde de Flanders born about 1005 Flanders, Belgium

spouse:
*Welf IV Duke of Bavaria
born 1037
died 9 November 1101 Cyprus

children:
*Heinrich IX Duke of Bavaria born 1074 died 1136
Fulco d'Este

biographical and/or anecdotal:

notes or source:
LDS
ancestry.com
All sources agree she is the mother of Heinrich, wife of welf and daughter of baldwin. The birthdate just doen't align however.