Chaim Tzvi Teitelbaum
Rabbi Chaim Tzvi Teitelbaum (December 28, 1879 – January 21, 1926) ("6 shevat 5686" on the Hebrew calendar), the Sigheter Rebbe, author of "Atzei Chaim", was the oldest son of Rabbi Chananya Yom Tov Lipa Teitelbaum, the "Kedushas Yom Tov". He was the elder brother of Rabbi Joel Teitelbaum, and the father of Moshe Teitelbaum, both rebbes of Satmar. Biography. Chaim Tzvi Teitelbaum married Bracha Sima Halberstam, a sister of "Rebbitzen" Chaya Freidel Halberstam, who was the wife of Rabbi Ben Zion Halberstam, the second Bobover Rebbe. Together, they had four children. One was Rabbi Moshe Teitelbaum, the  late Satmar Rebbe. Another was Rabbi Yekutiel Yehuda Teitelbaum, who succeeded him as Sigheter Rebbe until he was murdered in the Holocaust. One daughter married Rabbi Yekusiel Yehudah Halberstam, the Sanz-Klausenburg'er Rebbe, but she also was murdered in the Holocaust. Their youngest daughter, Chana, married Rabbi Yechiel Yehuda Isaacson, who was known as the Rav of Achuza-Haifa.