Siegfried of Ungarnmark Count
Siegfried of was born in 1031.  He died at the age of 34 in 1065.¹ 

 Richgard of Inngau Princess
Richgard of was born in 1037.  She died at the age of 47 in 1084.¹ 

 Engelbert I von Istrien
Engelbert I von was born in 1056.¹ 

 Richarda of Sponheim Princess
Richarda of was born in 1065.  She died at the age of 34 in 1099.¹