Rabbi Jacob Pollak (Other common spelling Yaakov Pollack), son of Rabbi Jacob Pollack was the founder of the Polish method of halakhic and Talmudic study known as the Pilpul.
Rabbi Yishmael was the Kohen Gadol (high priest) at the end of the Second Temple period, and one of the Asara Harugei Malchut(Ten Martyrs).
Served as the Nassi (president) of Israel in the period following the destruction of the Second Temple. He was the first of the 'Asara Harugei Malchut' (Ten Martyrs) executed.
Tanna - first generation. He was the deputy Kohen Gadol(high priest) at the end of the Second Temple period.