The Chronico Eberspergense names "Hadamuoden neptem suam [Oudalrici Eberspergensi] de filia Willibirga", specifying that her maternal grandfather granted her properties in "Sevun, Otacheresperc…Niuunchirchen …Huntilpach" as his sons had no surviving children.
Heiress of Istria. "Domina Azcica…patre Wecelino et Wilpurga…matre Hystriensium quondam comite et comitissa procreata" donated property to the monastery of San Michele di Leme, with the consent of "domine Wilpurge matris sue…et…domini Wolderici filii sui" by charter dated 12 May 1040. 1
Also called Azica.