Yitzchok Dov Koppelman (April 30,[1] 1909 – June 17, 2011) was born in Vasilishki, Belarus.
Koppelman was "a leading disciple of Rabbi Shimon Shkop,"[2] having been at the latter's yeshiva for 18 years.
The Yeshiva was based in Obernau in the canton of Lucerne (municipality of Kriens), where Rabbi Koppelman worked for 48 years and taught and inspired thousands of students from all over the world, including "Western Europe.. the United Kingdom, .. the United States of America, Canada, Eretz Yisroel and even Australia.
He was referred to as Zekan Roshei HaYeshivos (the world’s senior Rosh HaYeshiva), and lived to the age of 106.
[5] Koppelman's health permitted a trip from Switzerland to Australia the prior June.