Naftali Zvi Yehuda Berlin, also known as Reb Hirsch Leib Berlin, and commonly known by the acronym Netziv, was an Orthodox rabbi, Rosh yeshiva (dean) of the Volozhin Yeshiva and author of several works of rabbinic literature in Lithuania.

Chaim (Halevi) Soloveitchik, also known as Chaim Brisker, was a rabbi and Talmudic scholar credited as the founder of the Brisker approach to Talmudic study within Judaism. He was also a member of the Soloveitchik dynasty, the son of Yosef Dov Soloveitchik.