Count Engelbert II in the Salzburrgau
He died in 1020.

 Adela of Carinthia
She died after 1025.

 Graf Friedrich I von Buren
Friedrich I was born in 0975.  He died at the age of 52 in 1027.

 Count Engelbert III in the Pusterthal
Engelbert was born about 0980.  He died in 1039.