Levi Yitzchok of Berditchev
Levi Yitzchok of Berditchev (Levi Yitzchok Derbarmdiger (compassionate in Yiddish) or Rosakov) (1740–1809), also known as the holy Berdichever, and the Kedushas Levi, was a Hasidic master and Jewish leader. He was the rabbi of Ryczywół, Żelechów, Pinsk and Berdychiv, for which he is best known.
Source: Wikipedia — Levi Yitzchok of Berditchev (CC BY-SA 4.0)