Until 1945 , Nemmersdorf was a part of German East Prussia . It became known during World War II on October 22 , 1944 as the site of the first Soviet war crime on German territory against German women , French and Belgian POWs — the Nemmersdorf massacre . <!--incomprehensible: The Old Prussian name derived from the name refers to marshes in the area (''nemiršele'' or "Marsh Forget-me-not").--> The first documented mention of Nemmersdorf was in 1515 in a decree of the Insterburg Central Office . By 1910 , it counted a total of 484 residents , further increasing to 637 by 1939 . Between 1874 and 1945 , Nemmersdorf was the principal urban locality in Gumbinnen administrative district within the county of Nemmersdorf-Gumbinnen in East Prussia . The municipality included thirteen rural communities
Nemmersdorf massacre
Nemmersdorf massacre
Mayakovskoye