RIX DE (1714-1795), French scholar, was born at Gainneville near Havre, on Feb. 22, 1714, and died at Paris on July 3, After the close of the Seven Years' War he was sent to search in the archives of England for documents bearing upon the history of France, more particularly upon that of the French Provinces which once belonged to England. From this mission Brequigny brought back copies of about 7,00o documents, which are now in the Bibliotheque Nationale. A useful selection of these documents was published by Jean Jacques Champollion Figeac, in the collection of Documents inedits relati f s a l'histoire de France (2 vols., 1839, 1847). Brequigny himself drew the ma terial for important studies from the rich mine which he had thus exploited. These were included in the collection of the Academie des Inscriptions. The Revolution interrupted him in his collection of Memoires concernant l'histoire, les sciences, les lettres, et les arts des Chinois, begun in 1776 at the instance of the minister Bertin, when 15 volumes had appeared.
See Champollion-Figeac's preface to the Lettres des rois et reines; the Comite des travaux historiques, by X. Charmes, vol. i. passim; and the Catalogue des manuscrits des collections Duchesne et Brequigny (in the Bibliotheque Nationale) , by Rene Poupardin (19o5) .