Guelph IV Bavaria)
Birth:
Abt 1040
of Bavaria, Germany
Death:
9 Nov 1091
FCID:2052:5807
Parents
Father:
Azo II d'Este, Marquis
Mother:
Cunigunde of Bavaria
Marriage(s)

Judith (Fausta) Northumberland)
md. 1071
of Bavaria, Germany
Children
1.
Heinrich IX (Welf) Bavaria)
b. 1074

Ethelinda Saxony
md. Abt 1065
of Bavaria, Germany
Children