Yehuda Leib "Leibel" Groner ‑ a Hasidic Jewish teacher, scholar, and author – died on April 7, 2020 from Covid-19.
He had served as the personal secretary to Rabbi Menachem Mendel Schneerson, the seventh Lubavitcher Rebbe, for 44 years.
His parents were Rabbi Mordechai Avrohom Yeshaya Groner and Menucha Rochel Groner. Groner studied at the Central Yeshiva Tomchei Tmimim Lubavitch in Crown Heights, Brooklyn, where he excelled as a student.
Groner is a co-author, with Volf Greenglass of Montreal, of Sefer HaMinhagim, the authoritative book describing Chabad-Lubavitch customs. He was also an editor of Otzar HaChasidim, the editorial group that publishes works on Chabad Chassidut. He also taught at Beis Rivka in Crown Heights, a school for girls who are part of t...