Friedrich III, Herr von Hopfenoe-Pettendorf-Lengenfeld

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

a) FRIEDRICH von Pettendorf (-3 Apr 1119, bur Kloster Ensdorf). The Annales Pegavienses name "Ruotgerum Magdeburgensem postea episcopum et Fridericum comitem" as the two sons of "Ruotgerus comes" & his wife, specifying that the daughter of Friedrich married "Ottoni palatino de Witilinsbach"[2067]. The Fundatio Monasterii Ensdorfensis names "Fridericus pater palatine" in connection with the foundation of Ensdorf[2068] (by his son-in-law Otto Pfalzgraf von Wittelsbach). A charter dated 4 Aug 1155 records that “Fridericus pater Palatine et domina Heilwic soror Palatine et Gebehardus maritus eius de Lewkenberge et filii illorum Fridericus et Gebehardus” were buried at Ensdorf[2069].

m HEILBIRG [Heilwig], daughter of --- (-after 1110, bur Kloster Ensdorf). The Fundatio Monasterii Ensdorfensis names "Fridericum et Heylwic" as parents of "Heylice palatine", specifying that they were buried at Ensdorf[2070]. The origin of Heilbirg is not known. Europäische Stammtafeln[2071] suggests that she was Heilika von Staufen, daughter of Friedrich I Duke of Swabia & his wife Agnes of Germany, although the primary source on which this is based has not yet been identified. Friedrich & his wife had two children:

Friedrich III. of Lengenfeld, GF. v. Lengenfeld, born around 1070 (religion: r.k.), died on the 3.4.1119, buried in monastery of Ensdorf.

"Schleußner," "Geschichte eines in Thüringen, Franken und Hessen beheimateten Geschlechtes und seiner Ahnen," Irene Schleußner geb. Schüller, Deutsches Familienarchiv - ein genealogisches Sammelwerk, Band 14, S. 1-493, Herausgegeben von Gerhard Geßner, Schriftleitung Dr. Heinz F. Friederichs, Verlag Degener & Co., Inhaber Gerhard Geßner, Neustadt an der Aisch/Mittelfranken, 1960, [besonders die Adels-Listen scheinen sehr sorgfältig bearbeitet worden zu sein].

http://www.goldlauter.com/Gressler-Ahnen/ps131/ps131_082.html