On Lag B'Omer 1926, he announced his plan to establish a network of yeshivas called Keser Torah (Crown of Torah). Soon after, eight yeshivas were opened in Będzin, Podgórze, Chrzanów, Wolbrom, Oświęcim, Częstochowa, Łódź and Kraków. Though Hasidic in nature, the yeshivas did not promote Radomsker Hasidut, nor did they staff only Radomsker Hasidim. Each yeshiva had its own rosh yeshiva and initially studied its own Talmudic tractate; later, all the yeshivas studied the same tractate at the same time. The Rebbe paid for the entire operation, including staff salaries, food, and student lodging, out of his own pocket. At the same time, the Rebbe established Kibbutz Govoha in the city of Sosnowiece exclusively for high-level students and avreichim (married students) and appointed his son-in-law, Rabbi David Moshe Hakohen Rabinowicz (1906–1942), a brilliant Torah scholar, to head it. Rabbi David Moshe also served as rosh yeshiva of the entire Keser Torah network, monitoring students' progress, delivering shiurim, and administering the end of the semester tests. By 1930, nine yeshivas and the kibbutz were functioning. Over the following decade, more yeshivas were added. On the eve of World War II, there were 36 Keser Torah yeshivas enrolling over 4,000 students in Poland. The yeshivas were disbanded after the German invasion of Poland in 1939, and most of their students were murdered in the Holocaust. World War II When war broke out, the Rebbe was in Lódź. His Hasidim completed arrangements to fly him to Italy by mid-1940, but he refused, saying, "I want to be with all the Jews". The Rebbe eventually escaped to Alexander, but from there was most likely sent by the Nazis into the Warsaw Ghetto. The Radomsker Rebbe was one of the prominent Hasidic Rebbes incarcerated in the Warsaw Ghetto; others included the Piaseczner Rebbe; the Alexander Rebbe, the Sochatchover Rebbe, the Krimilover Rebbe, and the Strickover Rebbe. Rabinowicz was registered as a worker in the Shultz factory. Notwithstanding the danger, he refused to shave off his beard. The Rebbe's son-in-law, Rabbi David Moshe Rabinowicz, gave regular shiurim in the Warsaw Ghetto, and also composed many chiddushim (novel Torah thoughts) which his students recorded. All of these chiddushim as well as the sefarim he had written previously were lost in the war. Death and legacy The Rebbe and all the members of his family, including his only daughter, son-in-law, and their infant son, were killed during the