Rosensaft was born in 1948 in military barracks housing displaced persons, including survivors like his mother of the nearby Bergen-Belsen Nazi concentration camp.
Rosensaft o belegwe ka ngwaga wa 1948 kwa dikampeng tsa dintlo tsa sesole tsa batho ba ba tlositsweng, go akaretsa le bafalodi ba ba tshwanang le mmagwe wa kwa kampeng e e gaufi ya Bergen-Belsen Nazi.