Conrad von Nieder-Lausitz
Conrad was born in 1150 in Groitzsch, Peipzig, Saxony.  He died at the age of 60 on May 6th, 1210.

 Elzbita of Poland
Elzbita was born about 1152 in Krakaow, Poland.  She died on April 2nd, 1209.

 Mathilda von Nieder-Lausitz
Mathilda was born about 1185 in Groitzsch, Peipzig, Saxony.  She died in 1255.