Friedrich I av Kastl

-http://fmg.ac/Projects/MedLands/BAVARIAN%20NOBILITY.htm#FriedrichKa...

b) FRIEDRICH (-11 Nov 1103). The primary source which confirms his parentage has not yet been identified. Graf von Kastl.

m as her second husband, his sister-in-law, ALBERADA [Bertha] von Schweinfurt, widow of HERMANN [II] Graf von Kastl Markgraf von Banz, daughter of OTTO Markgraf von Schweinfurt (-11 Jan [1103]). The Annalista Saxo names (in order) "Eilica, Iudhita, Beatrix, Gisla, Berta" as the five daughters of Otto von Schweinfurt and Immula, referring to Berta's husband as "quidam de principus Bawariorum, qui agnominatus fuit de municione sua Havekesberh dicta"[1319]. The Fundatio Monasterii Banzensis names "marchio Hermannus…uxorem Alberadam" as founders of the monastery of Banz in [1071], and their two children "Heinricum, Ottonem"[1320]. The primary source which confirms her second marriage has not yet been identified.

  Graf Friedrich & his wife had [one] child: