Rabbi Tzadok HaKohen of Lublin - (1823–1900), Lublin, Poland.

Rabbi Tzadok HaKohen of Lublin - (1823–1900), Lublin, Poland. Born into a Lithuanian Rabbinic family before becoming a follower of the Chasidic Rebbe, Rabbi Mordechai Yosef Leiner of Izbica, and Yehudah Leib Eiger - grandson of Rabbi Akiva Eiger. Also a disciple of Rabbi Sholom Rokeach of Belz. As a young man he gained widespread acclaim as an illuy - a brilliant talmudist - but refused to accept any rabbinic post, instead eking out a living by his wife running a small used clothing store. Upon the death of R’ Eiger in 1888, agreed to take over the leadership of the Hasidim and deliver public classes which were compiled into his work known as Pri Tzadik.