Hebrew name: אש קודש
Years: 1889–1943
Primary city: Piaseczno
Rabbi Kalonymus Kalman Shapira was a Chasidic rebbe and educator who founded the Da’as Moshe Yeshiva in Warsaw. He authored Chovos HaTalmidim, a work focused on the spiritual development of students. His weekly sermons, delivered in the Warsaw Ghetto, were posthumously published as Aish Kodesh.