Wegener (1965/7), p. 72, and ES I 9. She is not mentioned in ES II 188A or Rösch...
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Wegener (1965/7), p. 72, and ES I 9. She is not mentioned in ES II 188A or Rösch, S. (1977) Caroli Magni Progenies (Verlag Degener & Co, Neustadt an der Aisch). MedLands. "Wegener speculates she was an unknown daughter of Eberhard, Duke of the March of Friulia [Unruochingi] ... based on names "Eberhard and Judith", used for Arnulf's children. This daughter is, however, not listed among the children Eberhard set out in the cartulary of Cysoing abbey, although she may be one of the unnamed daughters. From a chronological point of view, it is unlikely that the wife of Arnulf Duke of Bavaria was the daughter of Duke Eberhard. The latter's children must have been born between 840 - 860, whereas Duke Arnulf's children were probably born between 905 - 920, suggesting their mother was born in 880/90".