Isamar Rosenbaum (1886–1973) was a

Hasidic Hasidism, sometimes spelled Chassidism, and also known as Hasidic Judaism (Ashkenazi Hebrew: חסידות ''Ḥăsīdus'', ; originally, "piety"), is a Jewish religious group that arose as a spiritual revival movement in the territory of contem ...

rebbe A Rebbe ( yi, רבי, translit=rebe) or Admor ( he, אדמו״ר) is the spiritual leader in the Hasidic movement, and the personalities of its dynasties.Heilman, Samuel"The Rebbe and the Resurgence of Orthodox Judaism."''Religion and Spiritua ...

of the

Hasidic dynasties A Hasidic 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 often known as an ''ADMOR'' (abbreviation for '' ADoneinu MOrein ...

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 Mordechai Leifer (or Läufer) (1824–1894) was a rabbi in Nadvirna, Ukraine. Biography Leifer was the son of Rabbi Yesochor Bertche Leifer (d. 1848), author of ''Sisrei Torah'', and a great-great-grandson of Rabbi Meir "The Great" of Premishlan ...

(1824–1894). Rosenbaum became a rebbe at the age of fifteen and, at his father's behest, moved to

Czernowitz Chernivtsi ( uk, Чернівці́}, ; ro, Cernăuți, ; see also other names) is a city in the historical region of Bukovina, which is now divided along the borders of Romania and Ukraine, including this city, which is situated on the up ...

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

Kolbuszowa Kolbuszowa ( yi, קאלבאסאוו) is a small town in south-eastern Poland, with 9,190 inhabitants (02.06.2009). Situated in the Sandomierz Forest in the Subcarpathian Voivodship (since 1999), it is the capital of Kolbuszowa County. Kolbuszo ...

, 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

Manhattan Manhattan (), known regionally as the City, is the most densely populated and geographically smallest of the five boroughs of New York City. The borough is also coextensive with New York County, one of the original counties of the U.S. state ...

Yad Eliyahu Yad Eliyahu ( he, יד אליהו) is a neighborhood in east Tel Aviv, Israel. Yad Eliyahu was established in 1929. It developed in accordance with plans drawn up by Jacob Ben Sira, the Tel Aviv municipal engineer. The neighborhood, named for Ha ...

Tel Aviv Tel Aviv-Yafo ( he, תֵּל־אָבִיב-יָפוֹ, translit=Tēl-ʾĀvīv-Yāfō ; ar, تَلّ أَبِيب – يَافَا, translit=Tall ʾAbīb-Yāfā, links=no), often referred to as just Tel Aviv, is the most populous city in the G ...

Israel Israel (; he, יִשְׂרָאֵל, ; ar, إِسْرَائِيل, ), officially the State of Israel ( he, מְדִינַת יִשְׂרָאֵל, label=none, translit=Medīnat Yīsrāʾēl; ), is a country in Western Asia. It is situated ...

. 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 ( he, הַר הַזֵּיתִים, Har ha-Zeitim; ar, جبل الزيتون, Jabal az-Zaytūn; both lit. 'Mount of Olives'; in Arabic also , , 'the Mountain') is a mountain ridge east of and adjacent to Jeru ...

. 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 Chief Rabbi ( he, רב ראשי ''Rav Rashi'') is a title given in several countries to the recognized religious leader of that country's Jewish community, or to a rabbinic leader appointed by the local secular authorities. Since 1911, through a ...

Cuba Cuba ( , ), officially the Republic of Cuba ( es, República de Cuba, links=no ), is an island country comprising the island of Cuba, as well as Isla de la Juventud and several minor archipelagos. Cuba is located where the northern Caribbea ...

and

Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...

, 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