an 18th-century Polish rabbi who served as a representative of Kraków in the Council of Four Lands. Born in Szydlow, Poland to and old and distinguished rabbinic family form Przemysl. His father Isaac ben Samuel Zak was the Chief Rabbi of Przemysl and later Krakow. His mother was the daughter of Joshua Höschel ben Joseph. In his early years, Judah Leib officiated as rabbi in Szydlów later serving as representative of Kraków in the Council of Four Lands. After 1715 he became rabbi and president of the Yeshiva at Kraków, where he remained till his death in 1730.
