Alexander Bach, baron, an Austrian statesman, born at Loosdorf, Jan. 4, 1813. He succeeded his father in an extensive law practice, and was at first a liberal; was prominent during and shortly after the revolution of March, 1848, when he was appointed minister of justice, but soon seceded from the revolutionary ranks, and as member of the constituent assembly of that year, and minister of the interior as successor of Count Stadion (1849-'59), he became an uncompromising advocate of the strictest centralizing principles and the most decided opponent of the autonomy of Hungary and other nationalities. He reorganized the judiciary, carried out the emancipation of the peasantry from feudal burdens, which the revolution had decreed, on the principle of indemnity to the owners of land, remodelled the political administration of the crown lands, and promoted the concordat. Detested by the liberals, he left office after the Italian war of 1859, and was minister to Rome till the end of 1865.