Given name: Welwł,Welwel Family name: Rozowski

A student of Warsaw University, an active Bund member. In the ghetto he dealt, among others, with Cukunft youth groups. In November 1942 he escaped from a train heading to Treblinka, and returned to the ghetto. In the uprising he commanded a 'five' in the Roerich's shop region, at Smocza Street No. 6 and 8. On 29 april he left the ghetto through sewers and hid with Marek Edelman. After the blackmailers turned him in, he died at the Gestapo in May 1943.