Rabbi Yisrael Noach, son of the third Chabad Rebbe, Rabbi Menachem Mendel of Lubavitch, headed the yeshivah in Lubavitch during his father’s lifetime. He was known for his great humility and the many hours he would spend praying with intense emotions and concentration. Known as the "Maharin from Niezhen," he was one of Rabbi Menachem Mendel’s consultants in matters of Jewish thought, and Rabbi Menachem Mendel would delegate to him many of the questions he would receive. Following his father's passing in 1866, he relocated to Niezhen where he served as a chassidic master.