Otto Von Hammerstein
Otto was born in Hammerstein (now Czarne), Koszalin, Poland.  He died on June 5th, 1036.

 Ermentrude De Verdun
Ermentrude was born about 0962 in Verdun, Meuse, France.  She died in 1048 in aft 7 mar 1010.

 Irmentrud Von Hammerstein
Irmentrud was born about 1000.