Background
He was the son of Rabbi Yisachar Barish, who was the brother of Rabbi Tzvi Hirsh of Zidichov (1763–1831).
He was the son of Rabbi Yisachar Barish, who was the brother of Rabbi Tzvi Hirsh of Zidichov (1763–1831).
Rabbi Yitzchak Isaac was a close disciple of Rabbi Tzvi Hirsh of Zidichov until the latter"s death. He later studied under Rabbi Shalom of Belz. He was the author of Likutei Maharya.