Adalbert I, count of Winterthur

Graf Eberhard [IV] & his wife had [four] children:

4. IRMGARD . According to Europäische Stammtafeln[674], the wife of Werner [I] was sister of "Graf Eppo a. d. H. der Gf von Nellenburg", although the primary source on which this is based has not been identified. The Graf Eppo [Eberhard] to which this refers has not been identified, although from a chronological point of view it is likely that Irmgard was the daughter of Graf Eberhard [IV] if she was a member of this family. m WERNER [I] Vogt von Kaufungen, son of ADALBERT & his wife ---] (-killed in battle 23 Aug 1040).] https://fmg.ac/Projects/MedLands/SWABIAN%20NOBILITY.htm#_Toc514513192