 Among them are Elimelech of Lizhensk, who further developed the Hasidic doctrine of the Tzaddik (mystical leader) that gave rise to many Polish Hasidic dynasties, also notable are the teachings of his brother Zushya of Anipoli and Levi Yitzchok of Berditchev, known in Hasidic legend as the defender of the people before the Heavenly Court.Shneur Zalman of Liadi initiated the Chabad school of intellectual Hasidism.Others include Nachman of Breslav known for his use of imaginative parables, and Menachem Mendel of Kotzk.