Lejb (Lutek) Rotblat (October 14, 1918 – May 8, 1943) was an activist of the Jewish resistance movement in the Warsaw Ghetto, a member of Jewish Combat Organisation (ŻOB), and a participant in the Warsaw Ghetto Uprising. Rotblat came from an assimilated Jewish family. He lost his father when he was little. After graduation from high school in 1937, he became a counsellor at the HaNoar HaTzioni youth organisation. During World War II he joined the Zionist Bnei Akiva youth movement. He lived with his mother Maria (Miriam) Rotblat at 44 Muranowska Street in Warsaw. In March 1943, Arie Wilner foun