R' Moshe Dovid Flesch (1879-1944)
Born in Rajka, Győr-Moson-Sopron County, Hungary. Died in Weimar, Thuringia, Germany.
Son of Shmuel Flesch and Ester Flesch
Husband of Paula Flesch
Father of Sidy Loewenthal; Shmu (Genie)
A student of R' Shlomo Breuer, R' Flesch introduced Sarah Schneirer to the works of R' Samson Raphael Hirsch. D. Sofer's Yated Neeman bio on Rav Hirsch describes the momentous events as follows:
"On Shabbos Chanuka of 1915, a young Polish woman who was residing in Vienna attended a drasha delivered by Rav Moshe Dovid Flesch, a student of Rav Shamshon Raphael’s son-in-law and successor, Rav Shlomo Breuer. In that drasha, Rav Flesch quoted extensively from Rav Shamshon Raphael. After Shabbos, the young woman, who was profoundly impressed by Rav Shamshon Raphael’s ideas, secured copies of The Nineteen Letters and Chorev, and read them with relish. That young woman was Sara Schneirer, who later said on a number of occasions that these two works had inspired her to found the Bais Yaakov Movement."