He was born in the city of
Ronsperg, in modern
Czechia. He went studied Torah at
Schwabach,
Fuerth, and
Prague, where Leib Fischels and
Ezekiel Landau taught him. He opposed the
Reform movement. Ronsburg was the author of
Horah Gaver (Prague, 1802), commentary on the tractate
Horayot, and ''Ma'aseh Rav'' (ib. 1823), marginal notes on the
Talmud, reprinted in the Prague (1830–32) edition of the Talmud and in several later ones. Ronsburg's notes to the
Halakot of
Asher ben Jehiel were printed in the Prague (1839–46) edition of the Talmud under the title
Sedeh Tzofim. They are also reprinted in
Romm's Wilna edition. The following works by Ronsburg remain in manuscript (as of 1906):
Pitche Niddah, (later printed by
Mossad HaRav Kook) novellæ, and
Sichat Chullin. After an Hapsburg Imperial Decree in 1787, Ronsburg took the name Daniel Bezaleel Rosenbaum, the initials standing for both surnames; he continued to be known, however, as Ronsburg. ==References==