Joseph David Sinzheim was the chief rabbi of Strasbourg. He was son of Rabbi Isaac Sinzheim of Treves, and brother-in-law of Herz Cerfbeer.
Chassidic leader, son of the famous tzaddik Rabbi Mordechai of Chernobil, and the grandson of the tzaddik Rabbi Menachum Nachum of Chernobil.
Rabbi Dovid Bornsztain (1876 – 17 November 1942), also spelled Borenstein, Bornstein and Bernstein, known as the Chasdei Dovid, was the third Rebbe of the Sochatchov Hasidic dynasty. He succeeded his father, Rabbi Shmuel Bornsztain, as Rebbe upon the latter's death in 1926.
The second Lubavitch Chabad Rebbe.