sentences:  (Izhbitza is the Yiddish name of Izbica, located in present-day Poland).Rabbi Mordechai Yosef founded his own Hasidic movement in the year 5600 (1839), with Rabbi Mordechai Yosef leaving the court of Rabbi Menachem Mendel of Kotzk.His son and successor, Rabbi Yaakov Leiner of Izhbitza, moved to Radzin.