cant paste primary source & link:
-http://fmg.ac/Projects/MedLands/WURTTEMBERG.htm#dauMUdoLahngau
e) [JUDITH]. The identity of Udo's wife is not known with certainty. According to Jackman[1788], she may have been the daughter of Konrad Graf im Linz- und Argengau, whom he speculates was named Judith. King Arnulf in a charter dated 19 May 891 names "Chonradi…comitis et nepotis nostri"[1789]. The speculation is that the relationship may have been through Konrad's mother who, if identified as the daughter of Graf Konrad, was the niece of King Arnulf's paternal grandmother Queen Hemma. m UDO Graf im Lahngau, son of GEBHARD Graf im Niederlahngau [Konradiner] & his wife ---. 860/879.]
