Appletons' Cyclopædia of American Biography/Mann, Ambrose Dudley

MANN, Ambrose Dudley, diplomatist, b. in Hanover Court-house, Va., 36 April, 1801; d. in Paris, France, 20 Nov., 1889. He was educated at the U. S. military academy, resigned, was consul to Bremen in 1842, and was appointed to negotiate commercial treaties with Hanover, Oldenburg, and Mecklenburg in 1845, accredited to all the German states, except Prussia, for the same object in 1847, and became commissioner to Hungary in 1849. He was U. S. minister to Switzerland in 1850, and negotiated a reciprocity treaty. On returning home he became assistant secretary of state, serving till 1856. Having devoted himself especially to the development of the material interests of the southern states, he was sent to Europe by the Confederate government on a special mission, in which he was subsequently joined by John Slidell and James M. Mason. After the civil war he resided in France, where he was engaged in the preparation of his “Memoirs,” which are now ready for publication.