Isamar Rosenbaum (1886–1973) was a

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of the

Hasidic dynasties A Hasidic dynasty or Chassidic dynasty is a dynasty led by Hasidic Jewish spiritual leaders known as rebbes, and usually has some or all of the following characteristics: * Each leader of the dynasty is referred to as an ''ADMOR'' (abbreviation ...

of Nadvorna and Kretshnif. He was the son of Rabbi Meyer Rosenbaum (1852 - June 29 1908) of Kretshniff, who in turn was a son of Rabbi Mordechai of Nadvorna (1824–1894). Rosenbaum became a rebbe at the age of fifteen and, at his father's behest, moved to

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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, Malka, was the daughter of Rebbe Usher Yeshaya Rubin of

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, Galicia. His family was the only chasidic family of grand rabbis known to have all survived the Nazi camps with the whole family intact. His wife died in 1969 and was buried in Tveria. In 1970, three years before his death, he moved from the Washington Heights neighborhood of

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. 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 and was buried on the

Mount of Olives The Mount of Olives or Mount Olivet (; ; both lit. 'Mount of Olives'; in Arabic also , , 'the Mountain') is a mountain ridge in East Jerusalem, east of and adjacent to Old City of Jerusalem, Jerusalem's Old City. It is named for the olive, olive ...

. All his sons and sons-in-law, were chasidic rebbes, with the sole exception of his son Rabbi Meyer Rosenbaum, who was the

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and

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, and a prolific author of scholarly works, including ''Torah LeOhr Hatekufah''.

References

{{DEFAULTSORT:Rosenbaum, Issamar 1886 births 1973 deaths Rebbes of Nadvorna American Hasidic rabbis 20th-century American rabbis Burials at the Jewish cemetery on the Mount of Olives