Riwen Icchak Knopf was born in Lututow, Poland, 1878 to Shmuel and Miriam. He was a merchant and married to Ester Liba nee Berkovitz. Prior to WWII he lived in Lututow, Poland. During the war he was in Lututow, Poland. Riwen Icchak was murdered in the Shoah. Place of death: Chelmno, Poland, 1942.
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