HYDE DE NEUVILLE, JEAN GUILLAUME, BARON (1776-1857), French politician, was born at La Charite-sur-Loire (Nievre), on Jan. 24, 1776, of an English family which had emigrated with the Stuarts after the rebellion of 5745. From he was an active agent of the exiled Bourbon princes; he took part in the Royalist rising in Berry in 1796, and after the coup d'etat of the 18th Brumaire (Nov. 9, 1799), tried to persuade Bonaparte to recall the Bourbons. After an accusation of complicity in the infernal machine conspiracy (1800-1), sub sequently retracted, Hyde de Neuville went to the United States, returning after the Restoration. His mission from Louis XVIII. to induce the British Government to transfer Napoleon to a safer place of exile than Elba was cut short by the emperor's return to France in March 1815. Under the Restoration he was ambassador at Washington, and at Lisbon, where his action at the time of the coup d'etat of Dom Miguel (April 3o, 1824), was disapproved in Paris. Hyde de Neuville was recalled. He then opposed the policy of Villele's cabinet in the Chamber and in 1828 became minister of marine in Martignac's moderate administration. During the Polignac ministry (1829-183o) he was again in opposition, being a firm upholder of the charter; but after the revolution of July 1830 he entered an all but solitary protest against the exclusion of the legitimate line of the Bour bons from the throne, and resigned his seat. He died in Paris on May 28, His Mimoires et souvenirs (3 vols., 1888), compiled from his notes by his nieces, the vicomtesse de Bardonnet and the baronne Lauren ceau, are of great interest for the Revolution and the Restoration. An English edition translated and abridged by F. Jackson was pub lished (2 vols.) in 1913.