Heinrich Von Northeim
Heinrich Von was born about 1050.  He died in 1101.

 Gertrud von Braunschweig
Gertrud von was born about 1055.  She died on December 9th, 1117.

 Richensa of Northeim
Richensa of was born about 1083 in Northeim,Luxemburg.  She died on June 10th, 1141.

 Gertrud, Countess Of Northeim
Gertrud, Countess Of was born about 1089 in Northeim,Luxemburg.  She died after 1165.