Grand Rebbe Meyer Rosenbaum (1852–1908), Kretchnifer Rebbe, was the son of Rabbi Mordechai of Nadvorna (1824–1894) who was originally known as Rabbi Mordechai Leifer but is noted to have changed his last name to Rosenbaum.
[citation needed] Rosenbaum's scholarly work is called "Razah DeUvdah.
It is named for the town of Kretshnif, Romania, where Grand Rabbi Meir Rosenbaum resided.
[2] Today, descendants of the Kretshnif dynasty can be found across the globe, particularly in Israel, New York City, England, and Canada.
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