Schwennicke, Detlev, ed., Europaische Stammtafeln: Stammtafeln zur Geschichte der europaischen Staaten, New Series. XII: Schwaben. Marburg: Verlag von J. A. Stargardt, 1992. Information from this source tagged as [Ref: ES XII #[0-9]*].
Sources for birth and parent Information
parents:
[Ref: ES XII #34]
Sources for death Information
date:
occ 1197 [Ref: ES XII #34]
Sources with Information about marriage to Brigida Of Orgenburg
child:
[Ref: ES XII #34]
Research Notes:
Count of Ortenburg [Ref: ES XII #34]