Poppo II Of Istrea Markgraf
Poppo II was born about 1065.  He died on January 3rd, 1101.  He was buried in 1101.

 Richilda Von Spondheim
Richilda was born about 1076.  She died before 1112.  She was buried before 1112.

 Sophia Of Istria Heiress
Sophia was born about 1113.  She died on September 6th, 1128.  She was buried in 1128.