When Katriel Kazriel Rowinski was born on October 25, 1910, in Kosów Lacki, Mazowieckie, Poland, his father, Meir, was 20 and his mother, Brajna, was 30. He had one son with Cypojra Kreplac Kreplak. He died in 1995 in São Paulo, Sao Paulo, Brazil, at the age of 85.