Margrave Poppo II of Istria
Poppo was born about 1070 in Austria.  He died about 1095.

 Richilda von Sponheim
Richilda was born in Spondheim, Rheinland, Germany.  She died on April 11th, 1131.

 Hedwig of Istria
Hedwig was born about 1090 in Austria.

 Sophia von Krain-Istrien
She died on September 6th, 1128.