*Heinrich IX "The Black Duke" Duke of Bavaria
born 1074
died 1136

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

mother:
*Judith de Flanders
born about 1014 Flanders

siblings:
Fulco d'Este

spouse:
*Wulfhild Billung of Saxony
born 1076
died 1126

children:
*Judith of Bavaria born before 1103 died 22 February 1125
Welf VI of Bavaria born about 1105 Bavaria died 1191
Heinrich "The Proud" von Hanover Duke of Bavaria & Saxony born about 1108 Bavaria
died 1139 Germany

biographical and/or anecdotal:

notes or source:
LDS
ancestry.com