*Friedrich I Count of the Ober Isar
born about 0972 Ober Isar, Bavaria, Medieval States
died after 1030

father:
*Berthold I Count Palatine of Bavaria Count in the Upper Isar
born about 0942 Babenberg, Bavaria, Medieval States
died 26 August 0990

mother:
*unnamed Princess of Lorraine
born about 0948 Nancy, Lorraine, Medieval States
married about 0971 Nancy, Lorraine, Medieval States

siblings:
unnamed Countess of Bavaria born about 0976 Ober Isar, Bavaria, Medieval States
Dietrich I Count of Wasserburg born about 0974 Wasserburg, Bavaria, Medieval States died 1020

spouse:
*Hemma Countess of Öhningen
born about 0990 Öhningen, Konstanz, Baden
married about 1014 Öhningen, Konstanz, Baden

children:
*Friedrich II Count of Diessen born about 1019 Diessen, Oberbayern, Bavaria
died about 23 January 1075
Otto I Count of Diessen born about 1017 Diessen, Oberbayern, Bavaria died after 1060
*Berthold II Count of Diessen born about 1015 Diessen, Oberbayern, Bavaria died after 1060
Christine Countess of Diessen born about 1021 Diessen, Oberbayern, Bavaria
Pilihild Countess of Diessen born about 1023 Diessen, Oberbayern, Bavaria died 23 October 1075

biographical and/or anecdotal:

notes or source:
LDS