Herman Billung of Saxony
He died in Saxony.

 Hildegarde of Westerbourg
Hildegarde of was born before 0945.  She died after 0958 in Saxony.

 Matilda Billung of Saxony
Matilda Billung of was born about 0958 in Saxony.  She died on May 25th, 1008.

 Swanhilde of Saxony
She died on November 26th, 1014.

 Bernard (Benno) I Billung of Saxony