Groner was a party to a bitter split between two groups of Rabbi Schneerson's aides that differed in their recommendations as to how Rabbi Schneerson should be treated, with the two camps led by Groner and Yehuda Krinsky.
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His brother was Yitzchok Dovid Groner, who was the most senior Chabad rabbi in Melbourne, Victoria, Australia, and the director of the Yeshivah Centre there.
Gary Leib | Yitzchok Dovid Groner | Yehudah Aryeh Leib Alter | Owen D. Leib | Moshe Leib Rabinovich | Leib Tropper | Leib Gurwicz | Georg Leib's Gravestone - Alter Südfriedhof | Georg Leib | alt=Georg Leib's Grave |