Austrian rabbi; born at Meseritz, province of Posen, Feb. 1, 1821; died at Lemberg March 15, 1889. Upon the recommendation of Ludwig Philippson he was elected preacher in Szent Miklos, Liptau, Hungary (1845), where he became known as the pioneer of the modern synagogue service in Hungary. In 1857 he left Szent Miklos for the rabbinate of Butschowitz, Moravia, whence, shortly afterward, he was called as rabbi to Lemberg. Löwenstein was an impressive preacher and an indefatigable communal worker. He was twice decorated by the Emperor of Austria. In addition to some sermons, he published a volume of poems under the title "Jüdische Klänge" (Brünn, 1862).