Yitzchak Blazer

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Yitzchak Blazer
Yitzchak Blazer.jpg
Born 1837
near Vilnius, Russia
Died 1907
Palestine, Ottoman Empire

Yitzchak Blazer (1837 – 1907), also known as Reb Itzelle Peterburger, was one of the early important leaders of the Musar movement, a Jewish ethical movement based in Lithuania within the Russian Empire. He was a student of the founder of the movement, Yisrael Salanter, and was responsible for publishing many of Salanter's letters in Or Yisrael ("The Light of Israel"). Blazer became the chief rabbi of St. Petersburg in 1861–62, when he was only 25 years old.[1] From 1880 to approximately 1891, he served as the head of the Kovno Kollel in Kaunas, Lithuania, which was founded by Salanter.[2] Under Blazer's direction, the kollel came to be "considered by its contemporaries as a bastion of the Mussar movement," and was attacked by the Musar movement's opponents.[3] He later joined Nosson Tzvi Finkel in leading the Slabodka Yeshiva, and eventually moved to Palestine where he died in 1907.

He was the author of Peri Yitzchak', a halakhic text, as well as articles on Musar, Teshuvah, and the life of his teacher Yisrael Salanter.

Rabbi Yosef Yozel Horwitz was a distinguished (muvhak) pupil of Rabbi Blazer.[4]


  1. ^ Dov Katz, Tenu'at Ha-Musar, vol. 2, p. 222–23.
  2. ^ Immanuel Etkes, Rabbi Israel Salanter and the Mussar Movement, 274
  3. ^ Immanuel Etkes, Rabbi Israel Salanter and the Mussar Movement, 275
  4. ^ Ginsburg, Mordechai. "The Musar movement". p. 33. Retrieved Feb/14/12.  Check date values in: |access-date= (help)

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