Rabbi Yaakov Shimshon was one of the disciples of the Maggid of Mezritch. He was known to be very sharp and a great learner of the Chassidut. He was appointed to continue and spread the world of Chassidut among its followers. He moved to Israel and settled in Tiberias where he had a close connection to Rabbi Avraham of Kalisk and was in touch withReb Nachman of Breslov.
Rabbi Yaakov Shimshon’s commentary and new interpretation of the Halacha (Jewish rules) were published in the works of Rabbi Efraim Zalman Margalit, in
“Shut Maharsham” and in other locations as well.
He died in the Jewish year of תקס”א.