Issamar of Nadvorna

Infobox Rebbe
title = Nadvorna Rebbe


caption = Grand Rabbi Issamar Rosenbaum "The Elder"
of Nadvorna
term =1902 – 1973
full name = Issamar Rosenbaum
main work =
predecessor = Meyer Rosenbaum
successor =
spouse1 =Malka Rubin
issue1 =
spouse2 =
issue2 =
spouse3 =
issue3 =.
dynastyname = Nadvorna
father = Meyer Rosenbaum
mother =
date of birth =1886
place of birth =
date of death =1973
place of death =
date of burial =
place of burial =Mount of Olives|Rabbi Issamar Rosenbaum (1886-1973) was a Hasidic rebbe, and the grandfather of the extended Hasidic dynasty of Nadvorna and Kretshniff. He was the son of Rabbi Meyer Rosenbaum of Kretshniff, who in turn was a son of Rabbi Mordechai of Nadvorna.

Issamar Rosenbaum became a rebbe at the age of sixteen and, at his father's behest, moved to Czernowitz where he served as a chasidic rebbe. In the Nadvorna dynasty, all children of the rebbes open their own chasidic courts, even during their fathers lifetime. His wife, Rebbitzen Malka, was the daughter of Rebbe Usher Yeshaya Rubin of Kolbuszowa, Galicia.

His family was the only chasidic family of grand rabbis known to have all survived the Nazi camps with the whole family intact.

Six years before his death, in 1967, he moved from the Washington Heights neighborhood of Manhattan to Yad Eliyahu in Tel Aviv, Israel.

At the time of his death, he was one of the longest living chassidic rebbes in history; he was known as the "Admor Hazaken miNadvorna", or "Elder Rebbe of Nadvorna".

He died at the age of 86 in 1973.

All his sons and sons-in-law, were chasidic rebbes, with the sole exception of his son Rabbi Meyer Rosenbaum, who was the Chief Rabbi of Cuba, and a prolific author of scholarly works, including "Torah LeOhr Hatekufah".