 Among later Hasidic schools Rebbe Nachman of Breslov (1772–1810), the great-grandson of the Baal Shem Tov, revitalised and further expanded the latter's teachings, amassing a following of thousands in Ukraine, Belarus, Lithuania and Poland.In a unique amalgam of Hasidic and "Mitnaged" approaches, Rebbe Nachman emphasised study of both Kabbalah and serious Torah scholarship to his disciples.His teachings also differed from the way other Hasidic groups were developing, as he rejected the idea of hereditary Hasidic dynasties and taught that each Hasid must "search for the "tzaddik" ('saintly/righteous person')" for himself and within himself.