Rav Elazer Shach

Rav Elazer Shach-was a leading Lithuanian-born and educated Haredi rabbi in Bnei Brak, Israel. He also served as one of three co-deans of the Ponevezh yeshiva in Bnei Brak along with Rabbis Shmuel Rozovsky and Dovid Povarsky. He founded the Degel HaTorah political party representing Lithuanian Ashkenazi Jews in the Israeli Knesset, many of whom considered him to be the greatest scholar of the generation and used the honorific Maran ("[our] master") when referring to him.