Menachem Rosensaft's parents, Josef Rosensaft (1911-1971) and Hadassah Bimko (1910-1997), were important leaders of the DP community. Josef Rosensaft was born in Bedzin, Poland. He was deported to Auschwitz-Birkenau in April 1944, after a number of escapes from the Nazis. He ended up at Bergen Belsen two weeks before its liberation. After liberation, Josef remained at Bergen Belsen and served as Chairman of the Central Committee of the British Zone. In this position, he led all attempts to improve the lives of the Jewish survivors in the DP camps in British-occupied Germany. He possessed natural wisdom, a keen sense of justice and a fine sense of humor.
After 1945 the name was applied to the displaced persons camp established nearby, but it is most commonly associated with the concentration camp. From 1941 to 1945, almost 20,000 Soviet prisoners of war and a further 50,000 inmates died there. Overcrowding, lack of food and poor sanitary conditions caused outbreaks of typhus, tuberculosis, typhoid fever and dysentery, leading to the deaths of more than 35,000 people in the first few months of 1945, shortly before and after the liberation.