*Adalbert of Franconia
died 0906 Theres Castle (beheaded)

father:
*Heinrich of Franconia Markgraf von Friesland
born 9th Century Babenberg
died 0886 in battle (at PAris?) against the Normans

mother:
*Ingeltrud von Friuli

siblings:
*Adelinda von Babenberg died after 0915
Hedwig von Friesland

spouse:
*Glismut of Saxony
(end of information)

children:
*Conrad I Duke of Franconia King of Germany
born about 0890 Babenberg
died 23 December 0918 Germany
*Mathilda von Hesse born about 0899 Hesse, Germany
Eberhard of Franconia died after 0936 Babenberg

biographical and/or anecdotal:

notes or source:
ancestry.com
Eberhard of Franconia was definitely *Conrad of Franconia's brother (Encyclopedia Britannica).
However they are listed under different sources as having two different fathers.
Hence the confusion.