Izaak_Kramsztyk
Izaak Kramsztyk (1814–1889) was a Reform Jewish rabbi, preacher, lawyer and writer. He is credited as the first rabbinic teacher of Talmud in Polish. He started a dynasty of Warsaw's benefactors, scientists and writers, which included his sons Zygmunt, Julian, Feliks, Stanisław and his grandson Roman, a renowned painter.