Rabbi Yaakov Shimshon of Shepetovka [3 Sivan 5561], a descendant of Rabbi Shimshon of Ostropole, was a student of the Maggid of Mezritch and Rabbi Pinchus of Karitz and a close friend of Rabbi Boruch of Mezibuz. As a great authority in Jewish Law, he earned considerable respect also in rabbinic circles. In 1794 (according to charedi.org), he moved to Eretz Yisrael and settled in Teveria, where he is buried.
http://www.ascentofsafed.com/cgi-bin/ascent.cgi?Name=rebbeBios