references vbm:

http://de.wikipedia.org/wiki/Gebhard_III._von_Z%C3%A4hringen

P.Litta: Famiglie Celebri Italiane, Vol. Supplement5, tab. . Milano, 19?? A.de Ceballos-Escalera Gila: La Casa del Augusto Senor Conde de Barcelona. Cuadernos de Ayala, No.16, 2003

http://www8.informatik.uni-erlangen.de/cgi-bin/stoyan/l3/LANG=germ/...

http://fmg.ac/Projects/MedLands/SWABIAN%20NOBILITY.htm#Lancelindied...

GEBHARD (-12 Nov 1110).

• Great grandfather: LANCELIN, son of LANZELIN Graf von Altenburg & his wife Lütgard von Nellenburg (-after 1027). ... same person as…? LANDOLT (-after 992).
• Grandfather: BEZZELIN [Bertilo] (-15 Jul [1024]). m [LIUTGARD], daughter of ---, patruus of EBERHARD [IV] "dem Seligen" Graf von Nellenburg.
• Father: BERTHOLD (-Limburg 5/6 Nov 1078, bur Hirsau). m firstly RICHWARA, daughter of --- (-before [1056]). According to Wegener, she was Richwara of Swabia, daughter of Hermann IV Duke of Swabia [Babenberg] & his wife Adelaida di Susa. However, this seems unlikely from a chronological point of view. Richwara gave birth to five children, presumably between [1045/55], so is unlikely to have been born later than 1030, when her supposed father was only 15 years old and her supposed mother about 10. GEBHARD (-12 Nov 1110). The Genealogia Zaringorum names "Gebehardo Constantiensi episcopo" as brother of "Berchtoldus"[634]. The Zwiefaltensis Chronicon names "Gebehardum Constantensem episcopum, Bertolfi ducis germanum" when recording his death "II Id Nov 1110"[635]. The Casus Monasterii Petrishusensis names "Gebehardus vir nobilissimus frater Bertholdi ducis de Zaringin" specifying that he was "prepositus apud Xantum"[636]. Provost at Xanten. Monk at Hirsau before 1084. Bishop of Konstanz 1084-1110. Papal legate in Germany 1099-1107.

Siblings:

1. i) HERMANN ([1045/48]-Cluny 26 Apr 1074). ...Marchese di Verona... m JUDITH von Calw, daughter of [HESSO] II Graf im Sülchgau Herr von Backnang & his wife --- (-Salerno 27 Sep 1091, bur Backnang).
2. ii) BERTHOLD ([1050]-12 Apr 1111, bur St Peter in Schwarzwald).
3. iv) RICHINZA von Spitzenburg (bur Schaffhausen Allerheiligen). ... m firstly --- von Frickingen . m secondly LUDWIG von Sigmaringen [Helfenstein] (-before 1092).
4. v) LIUTGARDE (-18 Mar [1119]). ... m firstly DIEPOLD [II] von Giengen Markgraf im Nordgau, son of DIETPOLD [I] Graf [von Cham] [Ratpotonen] & his wife --- (-killed in battle near Wellrichstadt 7 Aug 1078). m secondly ERNST von Grögling Graf von Ottenburg, son of [HARTWICH [II] Graf an der unteren Ampar & his wife Avisa ---] (-12 Jan [1096/97]).