Friedrich I, Count of the OBER ISAR
He married Hemma Countess of Ohningen Abt 1014 at of Ohningen, Konstanz, Baden . Hemma Countess of Ohningen was born at of Ohningen, Konstanz, Baden Abt 990 daughter of Kuno, Count of Ohningen and Mrs Kuno, Countess Ohningen .
They were the parents of 5
children:
Berthold II, Count of Diessen
born Abt 1015.
Otto I Count of Diessen
born Abt 1017.
Friedrich II, Count of Diessen
born Abt 1019.
Christine, Countess of Diessen
born Abt 1021.
Pilihild, Countess of Diessen
born Abt 1023.
Friedrich I, Count of the Ober Isar died Aft 1030 .