*Heinrich Graf von Berg-Schelklinge
born about 1070

father:
*Diepolt I Graf von Angstgau & Traungau
born about 1004 Germany

mother:
*daughter of Heinrich von Schweinfurt
born about 1011 Schweinfurt, Unterfranken, Bavaria

siblings:
*Ratpoto IV Count of Cham born 1034? Cham, Oberpfalz, Bavaria died 1074
*unnamed son of Diepold I Graf von Angstgau & Traungau
*Diepold II Graf von Nordgau died 7 August 1078

spouse:
*Adelaide von Monchenthal
born about 1077

children:
*Salome von Berg-Schelklinge
born about 1099 Schelklingen, Donaukreis, Wurttemberg
died 27 July 1144

biographical and/or anecdotal:

notes or source:
LDS
ancestry.com
According to this record he married his niece.
While perhaps not unheard of it was certainly frowned upon by the church.