Shlomo Chanoch Hakohen Rabinowicz (also spelled Rabinowitz, Rabinowich, Rabinovitch) (1882 – 1 August 1942) was the fourth and last Rebbe of the Radomsk Hasidic dynasty. He was the eldest son of the third Radomsker Rebbe, Rabbi Yechezkel Hakohen Rabinowicz and great-grandson of the founder of the dynasty, Rabbi Shlomo Hakohen Rabinowicz, the Tiferes Shlomo. Under his leadership, Radomsk grew to be the third largest Hasidut in Poland, after Ger and Alexander. Rabinowicz built a network of 36 yeshivas across Poland and Galicia that enrolled over 4,000 students by 1939. He was murdered in the Warsaw Ghetto together with his entire family. Biography Rabinowicz was born in Radomsko, Poland, the eldest of two sons of the third Radomsker Rebbe, Rabbi Yechezkel Hakohen Rabinowicz. He married the daughter of Rabbi Ahrele Twerski of Kras and had one daughter, Reizel. Reizel married her father's first cousin, Rabbi David Moshe Rabinowicz (1906-1942), in 1929. Rabbi David Moshe was the son of Rabbi Nosson Nachum Hakohen Rabinowicz, Rav of Krimilow, and grandson of the second Radomsker Rebbe, Rabbi Avraham Yissachar Dov Hakohen Rabinowicz. Shlomo Chanoch Rabinowicz succeeded his father as Rebbe upon the latter's death in 1910. He was a dynamic and charismatic leader. Thousands of Hasidim attended his court on Shabbat and Jewish holidays. On the eve of World War II, Radomsk was the third largest Hasidut in Poland, after Ger and Alexander. In Kraków, there were more Radomsker shtieblach (small houses of prayer and study) than Gerrer shtieblach. The Rebbe considered himself a Hasid of the Chortkover Rebbe. The Rebbe was quite wealthy. He owned a glass factory and homes in Berlin, Warsaw, and Sosnowiec, where he lived after World War I. He also amassed a huge personal library of old manuscripts and prints, which was said to be the second-largest private library in Poland after that of the Gerrer Rebbe. Although he suffered from diabetes like his father and grandfather, and both of his predecessors had died of complications from diabetes at the age of 48, his life was extended by the discovery of insulin in 1921. Keser Torah yeshiva network World War I uprooted hundreds of thousands of Jews and decimated established communities. Traditionally, Hasidic youth had learned Torah from their elders and picked up the customs and lore of their Hasidic groups in the shtiebelach of Poland and Galicia. Now the Radomsker Rebbe proposed a new method of Hasidic education.