Issachar Berend Lehmann, German-Jewish banker, merchant and diplomat (d. 1730)
Issachar Berend Lehmann, Berend Lehmann, Yissakhar Bermann Segal, Yissakhar ben Yehuda haLevi, Berman Halberstadt (April 23, 1661 in Essen, Westphalia – July 9, 1730 in Halberstadt, Kingdom of Prussia), was a German banker, merchant, diplomatic agent as well as army and mint contractor working as a court Jew for Elector Augustus II the Strong of Saxony, King of Poland, and other German princes. He was privileged as a Court Jew and as a Resident. Thanks to his wealth, privileges as well as social and cultural commitment he was a Jewish dignitary famous in his day in Central and Eastern Europe.