Klonimus Kalman Epstein

Kalonymus Kalman Halevi Epstein (Hebrew: רבי קלונימוס קלמן אפשטיין; Nowy Korczyn (Neustadt), Poland, 1751 – Kraków, 1823) was a rabbi, Kabbalist and a leader of the Chassidic movement, known as the Maor Vashamesh (מאור ושמש) after his Hebrew book.