Rabbi Issachar Berish (Bernhard) Lewinstein was born in 1821 and died 1888.

He was born in Podlaski and elected A.B.D. Gyergyoszentkilos, Hungary. In 1857 is was elected as a preacher in Lvov. On the occasion of his jubilee there, Buber published Sha'arei Tzion in his honour.

Source

• The Unbroken Chain - Neil Rosenstein (1990) Volume 1, Chapter 1V,

page 247, G 13

• Buber, Anshei Shem # 320. Dr S. Gronemann:

Gealogische Studien uber die alten judischen familien Hannovers (1913)