Joseph Ber Soloveitchik was born on February 27, 1903, in Pruzhany, then Russia (next Poland, now Belarus). He came from a rabbinical dynasty dating back some 200 years: His paternal grandfather was Rabbi Chaim Soloveitchik, and his great-grandfather and namesake was Rabbi Yosef Dov Soloveitchik, the Beis HaLevi. His great-great-grandfather was Rabbi Naftali Zvi Yehuda Berlin (The Netziv), and his great-great-great-great grandfather was Rabbi Chaim Volozhin. His father, Rabbi Moshe Soloveichik (note different spelling of last name), preceded him as head of the RIETS rabbinical school at Yeshiva University. On his maternal line, Soloveitchik was a grandson of Rabbi Eliyahu Feinstein and his wife Guta Feinstein, née Davidovitch, who, in turn, was a descendant of a long line of Kapulyan rabbis, and of the Tosafot Yom Tov, the Shelah, the Maharshal, and Rashi.